A363110 - cp's OEIS frontend

A363110 G.f.: Sum_{n>=0} x^n * Product_{k=1..n} (k + (n-k+1)x) / (1 + kx + (n-k+1)*x^2).

n	a(n)
0	1
1	1
2	2
3	4
4	10
5	28
6	88
7	306
8	1158
9	4730
10	20722
11	96776
12	479340
13	2507510
14	13804014
15	79718782
16	481614806
17	3036358968
18	19932689952
19	135981543762
20	962319171782
21	7053068549250
22	53458038451082
23	418440466421960
24	3378290373259300
25	28099682071640734
26	240537280709926718

[1, 1, 2, 4, 10, 28, 88, 306, 1158, 4730, 20722, 96776, 479340, 2507510, 13804014, 79718782, 481614806, 3036358968, 19932689952, 135981543762, 962319171782, 7053068549250, 53458038451082, 418440466421960, 3378290373259300, 28099682071640734, 240537280709926718]

cp's OEIS Frontend

A363110 G.f.: Sum_{n>=0} x^n * Product_{k=1..n} (k + (n-k+1)x) / (1 + kx + (n-k+1)*x^2).

Table of values

List of values

cp's OEIS Frontend

A363110 G.f.: Sum_{n>=0} x^n * Product_{k=1..n} (k + (n-k+1)*x) / (1 + k*x + (n-k+1)*x^2).

Table of values

List of values

A363110 G.f.: Sum_{n>=0} x^n * Product_{k=1..n} (k + (n-k+1)x) / (1 + kx + (n-k+1)*x^2).