Triangle read by rows: T(n,k) appears in the transformation Sum_{k=0..n} (k+1)*x^k = Sum_{k=0..n} T(n,k)*(x+2k)^k.
A253381
Triangle read by rows: T(n,k) appears in the transformation Sum_{k=0..n} (k+1)*x^k = Sum_{k=0..n} T(n,k)*(x+2k)^k.
Terms
- a(0) =1a(1) =-3a(2) =2a(3) =-3a(4) =-22a(5) =3a(6) =-3a(7) =122a(8) =-69a(9) =4a(10) =-3a(11) =-518a(12) =891a(13) =-156a(14) =5a(15) =-3a(16) =1882a(17) =-8709a(18) =3444a(19) =-295a(20) =6a(21) =-3a(22) =-6182a(23) =71931a(24) =-57036a(25) =9785a(26) =-498a(27) =7a(28) =-3a(29) =18906
External references
- oeis: A253381