305280domain: NAppears in sequencesa(n) = n!*(1/C(n,0) - 1/C(n,1) - ... - 1/C(n,[ n/2 ])).at n=9A024421Row sums of unsigned A128090.at n=23A128091Expansion of eta(q^2)^12 * eta(q^4)^8 / eta(q)^8 in powers of q.at n=25A286399Triangle read by rows: T(n, k) = n! * 3^k * hypergeom([-k], [-n], -2/3).at n=38A375597