Triangle read by rows: T(n,k) is the coefficient A_k in the transformation Sum_{k=0..n} x^k = Sum_{k=0..n} A_k*(x+2*(-1)^k)^k.
A249266
Triangle read by rows: T(n,k) is the coefficient A_k in the transformation Sum_{k=0..n} x^k = Sum_{k=0..n} A_k*(x+2*(-1)^k)^k.
Terms
- a(0) =1a(1) =3a(2) =1a(3) =-9a(4) =-3a(5) =1a(6) =-97a(7) =-39a(8) =7a(9) =1a(10) =815a(11) =313a(12) =-65a(13) =-7a(14) =1a(15) =12367a(16) =4873a(17) =-945a(18) =-127a(19) =11a(20) =1a(21) =-164465a(22) =-64439a(23) =12735a(24) =1633a(25) =-169a(26) =-11a(27) =1a(28) =-3314673a(29) =-1302263
External references
- oeis: A249266