T(n, k) = [x^k] hypergeom([-2^n/2, -2^n/2 - 1/2], [1/2], x). Triangle read by rows, T(n, k) for n >= 0.

A340554

T(n, k) = [x^k] hypergeom([-2^n/2, -2^n/2 - 1/2], [1/2], x). Triangle read by rows, T(n, k) for n >= 0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =1a(5) =10a(6) =5a(7) =1a(8) =36a(9) =126a(10) =84a(11) =9a(12) =1a(13) =136a(14) =2380a(15) =12376a(16) =24310a(17) =19448a(18) =6188a(19) =680a(20) =17a(21) =1a(22) =528a(23) =40920a(24) =1107568a(25) =13884156a(26) =92561040a(27) =354817320a(28) =818809200a(29) =1166803110

External references