Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = (1-x)^(2*n+3)*( Sum_{j >= 0} (2*j+ 1)^n*x^j )*( Sum_{j >= 0} j^(n+1)*x^j ), read by rows.
A165883
Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = (1-x)^(2*n+3)*( Sum_{j >= 0} (2*j+ 1)^n*x^j )*( Sum_{j >= 0} j^(n+1)*x^j ), read by rows.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =1a(5) =10a(6) =26a(7) =10a(8) =1a(9) =1a(10) =34a(11) =287a(12) =508a(13) =287a(14) =34a(15) =1a(16) =1a(17) =102a(18) =2272a(19) =11098a(20) =19134a(21) =11098a(22) =2272a(23) =102a(24) =1a(25) =1a(26) =294a(27) =15493a(28) =169432a(29) =675706
External references
- oeis: A165883