Square array read by ascending antidiagonals, T(n, k) = k!*[x^k](exp(x)*sum(j=0..n, C(2*n,j)*x^j)), n>=0, k>=0.
A253670
Square array read by ascending antidiagonals, T(n, k) = k!*[x^k](exp(x)*sum(j=0..n, C(2*n,j)*x^j)), n>=0, k>=0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =5a(8) =5a(9) =1a(10) =1a(11) =7a(12) =21a(13) =7a(14) =1a(15) =1a(16) =9a(17) =43a(18) =49a(19) =9a(20) =1a(21) =1a(22) =11a(23) =73a(24) =229a(25) =89a(26) =11a(27) =1a(28) =1a(29) =13
External references
- oeis: A253670