26208036736domain: NAppears in sequencesTriangle T, read by rows, where the g.f. of row n of T^n = (n^2 + y)^n for 0 <= n <= 29, where T^n denotes the n-th power of T considered as (lower-left) matrix.at n=38A132870Column 2 of triangle A132870 (first 30 terms only).at n=6A132874