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+3k)^k.
A253384
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+3k)^k.
Terms
- a(0) =1a(1) =-5a(2) =2a(3) =-5a(4) =-34a(5) =3a(6) =-5a(7) =290a(8) =-105a(9) =4a(10) =-5a(11) =-1870a(12) =2055a(13) =-236a(14) =5a(15) =-5a(16) =10280a(17) =-30345a(18) =7864a(19) =-445a(20) =6a(21) =-5a(22) =-50956a(23) =377895a(24) =-196256a(25) =22235a(26) =-750a(27) =7a(28) =-5a(29) =234812
External references
- oeis: A253384