1A coefficients in an expansion of the elliptic genus of the K3 surface.

Terms

a(0) =-1a(1) =45a(2) =231a(3) =770a(4) =2277a(5) =5796a(6) =13915a(7) =30843a(8) =65550a(9) =132825a(10) =260568a(11) =494385a(12) =915124a(13) =1651815a(14) =2922381a(15) =5069867a(16) =8650530a(17) =14525742a(18) =24053215a(19) =39299778a(20) =63447087a(21) =101268540a(22) =159963804a(23) =250188435a(24) =387746282a(25) =595726956a(26) =907877355a(27) =1372935090a(28) =2061208710a(29) =3073155810