A126787 - cp's OEIS frontend

A126787 G.f.: B(x)B(2!x^2)B(3!x^3)*..., where B(x) is g.f. of A000142.

n	a(n)
0	1
1	1
2	4
3	14
4	66
5	308
6	1888
7	12240
8	95640
9	827904
10	8106960
11	87387264
12	1035645312
13	13316300928
14	184988692800
15	2756878875648
16	43888205438208
17	742943286892800
18	13326434312808960
19	252448071959572992
20	5036116692383428608
21	105523926692032447488

[1, 1, 4, 14, 66, 308, 1888, 12240, 95640, 827904, 8106960, 87387264, 1035645312, 13316300928, 184988692800, 2756878875648, 43888205438208, 742943286892800, 13326434312808960, 252448071959572992, 5036116692383428608, 105523926692032447488]

cp's OEIS Frontend

A126787 G.f.: B(x)B(2!x^2)B(3!x^3)*..., where B(x) is g.f. of A000142.

Table of values

List of values

cp's OEIS Frontend

A126787 G.f.: B(x)*B(2!*x^2)*B(3!*x^3)*..., where B(x) is g.f. of A000142.

Table of values

List of values

A126787 G.f.: B(x)B(2!x^2)B(3!x^3)*..., where B(x) is g.f. of A000142.