Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A213109.
A384802
Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A213109.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =0a(6) =1a(7) =2a(8) =3a(9) =0a(10) =1a(11) =3a(12) =8a(13) =22a(14) =0a(15) =1a(16) =4a(17) =15a(18) =62a(19) =233a(20) =0a(21) =1a(22) =5a(23) =24a(24) =126a(25) =696a(26) =3716a(27) =0a(28) =1a(29) =6
External references
- oeis: A384802