Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x-3k)^k for 0 <= k <= n.
A248978
Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x-3k)^k for 0 <= k <= n.
Terms
- a(0) =1a(1) =4a(2) =1a(3) =4a(4) =13a(5) =1a(6) =4a(7) =94a(8) =28a(9) =1a(10) =4a(11) =526a(12) =460a(13) =49a(14) =1a(15) =4a(16) =2551a(17) =5860a(18) =1399a(19) =76a(20) =1a(21) =4a(22) =11299a(23) =64180a(24) =30559a(25) =3316a(26) =109a(27) =1a(28) =4a(29) =47020
External references
- oeis: A248978