a(n,m) tabl head (triangle) for A090215 (generalized Legendre-Stirling, l=4) n\m 1 2 3 4 5 6 7 8 1 1 0 0 0 0 0 0 0 2 24 1 0 0 0 0 0 0 3 576 144 1 0 0 0 0 0 4 13824 17856 504 1 0 0 0 0 5 331776 2156544 199296 1344 1 0 0 0 6 7962624 259117056 73903104 1328256 3024 1 0 0 7 191102976 31102009344 26864234496 1189638144 6408576 6048 1 0 8 4586471424 3732432224256 9702226427904 1026160275456 11956045824 24697728 11088 1