1 ((63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(c - I*k0)^2])*(c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(c - I*k0)^2])*(c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(c - I*k0)^2])*(c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(c - I*k0)^2])*(c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(c - I*k0)^2])*(c - I*k0)^10)/(241920*k^6) - (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(2*c - I*k0)^2])*(2*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(2*c - I*k0)^2])*(2*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(2*c - I*k0)^2])*(2*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(2*c - I*k0)^2])*(2*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(2*c - I*k0)^2])*(2*c - I*k0)^10)/(34560*k^6) + (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(3*c - I*k0)^2])*(3*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(3*c - I*k0)^2])*(3*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(3*c - I*k0)^2])*(3*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(3*c - I*k0)^2])*(3*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(3*c - I*k0)^2])*(3*c - I*k0)^10)/(11520*k^6) - (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(4*c - I*k0)^2])*(4*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(4*c - I*k0)^2])*(4*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(4*c - I*k0)^2])*(4*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(4*c - I*k0)^2])*(4*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(4*c - I*k0)^2])*(4*c - I*k0)^10)/(6912*k^6) + (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(5*c - I*k0)^2])*(5*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(5*c - I*k0)^2])*(5*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(5*c - I*k0)^2])*(5*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(5*c - I*k0)^2])*(5*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(5*c - I*k0)^2])*(5*c - I*k0)^10)/(6912*k^6) - (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(6*c - I*k0)^2])*(6*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(6*c - I*k0)^2])*(6*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(6*c - I*k0)^2])*(6*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(6*c - I*k0)^2])*(6*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(6*c - I*k0)^2])*(6*c - I*k0)^10)/(11520*k^6) + (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(7*c - I*k0)^2])*(7*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(7*c - I*k0)^2])*(7*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(7*c - I*k0)^2])*(7*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(7*c - I*k0)^2])*(7*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(7*c - I*k0)^2])*(7*c - I*k0)^10)/(34560*k^6) - (63*k^10 + 2*k^8*(315 - 128*Sqrt[1 + k^2/(8*c - I*k0)^2])*(8*c - I*k0)^2 + 16*k^6*(105 - 64*Sqrt[1 + k^2/(8*c - I*k0)^2])*(8*c - I*k0)^4 + 96*k^4*(21 - 16*Sqrt[1 + k^2/(8*c - I*k0)^2])*(8*c - I*k0)^6 + 128*k^2*(9 - 8*Sqrt[1 + k^2/(8*c - I*k0)^2])*(8*c - I*k0)^8 - 256*(-1 + Sqrt[1 + k^2/(8*c - I*k0)^2])*(8*c - I*k0)^10)/(241920*k^6))/k0^6
2 SeriesData[k, Infinity, {(35*c^7)/k0^6, (-864*c^8)/k0^6 + ((192*I)*c^7)/k0^5, (315*(125*c^9 - (54*I)*c^8*k0 - 6*c^7*k0^2))/(4*k0^6), (-63360*c^10)/k0^6 + ((40000*I)*c^9)/k0^5 + (8640*c^8)/k0^4 - ((640*I)*c^7)/k0^3, (693*(4819*c^11 - (3960*I)*c^10*k0 - 1250*c^9*k0^2 + (180*I)*c^8*k0^3 + 10*c^7*k0^4))/(16*k0^6), 0, (-1001*(73120*c^13 - (86346*I)*c^12*k0 - 43371*c^11*k0^2 + (11880*I)*c^10*k0^3 + 1875*c^9*k0^4 - (162*I)*c^8*k0^5 - 6*c^7*k0^6))/(32*k0^6)}, 3, 11, 1]