Triangle, read by rows, where T(n,k) = k!*C(n, k)*7^(n-k) for n>=0, k=0..n.

Terms

a(0) =1a(1) =7a(2) =1a(3) =49a(4) =14a(5) =2a(6) =343a(7) =147a(8) =42a(9) =6a(10) =2401a(11) =1372a(12) =588a(13) =168a(14) =24a(15) =16807a(16) =12005a(17) =6860a(18) =2940a(19) =840a(20) =120a(21) =117649a(22) =100842a(23) =72030a(24) =41160a(25) =17640a(26) =5040a(27) =720a(28) =823543a(29) =823543