Numbers k such that k^3 divides 2^(k^2)+1.

Terms

a(0) =1a(1) =3a(2) =57a(3) =32547a(4) =9961491a(5) =297381939a(6) =1338104811a(7) =3942759027a(8) =5688011361a(9) =8920514307a(10) =9146532873a(11) =40253706489a(12) =243640690617a(13) =764039295291