A193195 - cp's OEIS frontend

A193195 G.f. satisfies: A(A(x)) = Sum_{n>=1} a(n)x^n / (1-x)^(n(n+1)/2), where g.f. A(x) = Sum_{n>=1} a(n)*x^n.

n	a(n)
1	1
2	1
3	2
4	8
5	63
6	866
7	18444
8	559083
9	22773527
10	1197061138
11	78782852673
12	6341384941543
13	612605031308910
14	69931195961966196
15	9310803519433216321
16	1429869869684956113511
17	250857267705012344767575
18	49858270430813771746874366
19	11143529422156562195864991584

[1, 1, 2, 8, 63, 866, 18444, 559083, 22773527, 1197061138, 78782852673, 6341384941543, 612605031308910, 69931195961966196, 9310803519433216321, 1429869869684956113511, 250857267705012344767575, 49858270430813771746874366, 11143529422156562195864991584]

cp's OEIS Frontend

A193195 G.f. satisfies: A(A(x)) = Sum_{n>=1} a(n)x^n / (1-x)^(n(n+1)/2), where g.f. A(x) = Sum_{n>=1} a(n)*x^n.

Table of values

List of values

cp's OEIS Frontend

A193195 G.f. satisfies: A(A(x)) = Sum_{n>=1} a(n)*x^n / (1-x)^(n*(n+1)/2), where g.f. A(x) = Sum_{n>=1} a(n)*x^n.

Table of values

List of values

A193195 G.f. satisfies: A(A(x)) = Sum_{n>=1} a(n)x^n / (1-x)^(n(n+1)/2), where g.f. A(x) = Sum_{n>=1} a(n)*x^n.