Triangle, read by rows, T(n, k) = T(n, k-1) + (k+1)*n!, T(n, 0) = 1.

Terms

a(0) =1a(1) =1a(2) =3a(3) =1a(4) =5a(5) =11a(6) =1a(7) =13a(8) =31a(9) =55a(10) =1a(11) =49a(12) =121a(13) =217a(14) =337a(15) =1a(16) =241a(17) =601a(18) =1081a(19) =1681a(20) =2401a(21) =1a(22) =1441a(23) =3601a(24) =6481a(25) =10081a(26) =14401a(27) =19441a(28) =1a(29) =10081