Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of g.f. 1/(1 - 2*k*x - k*x^2).
A342134
Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of g.f. 1/(1 - 2*k*x - k*x^2).
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =2a(5) =0a(6) =1a(7) =4a(8) =5a(9) =0a(10) =1a(11) =6a(12) =18a(13) =12a(14) =0a(15) =1a(16) =8a(17) =39a(18) =80a(19) =29a(20) =0a(21) =1a(22) =10a(23) =68a(24) =252a(25) =356a(26) =70a(27) =0a(28) =1a(29) =12
External references
- oeis: A342134