Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} k^j * binomial(n,j) * binomial(2*j,j).

A340970

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} k^j * binomial(n,j) * binomial(2*j,j).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =5a(8) =11a(9) =1a(10) =1a(11) =7a(12) =33a(13) =45a(14) =1a(15) =1a(16) =9a(17) =67a(18) =245a(19) =195a(20) =1a(21) =1a(22) =11a(23) =113a(24) =721a(25) =1921a(26) =873a(27) =1a(28) =1a(29) =13

External references