A227851 - cp's OEIS frontend

A227851 G.f.: Sum_{n>=1} n^n * x^n * Product_{k=1..n} (k + x) / (1 + nkx + n*x^2).

n	a(n)
0	1
1	1
2	8
3	125
4	3650
5	171440
6	11815940
7	1122759980
8	140645621840
9	22456283261240
10	4451225265169640
11	1072410309912462440
12	308628265617560695880
13	104567048162852196877640
14	41198829781936190483346440
15	18676924223093561435394148040
16	9652952812685808726911849225480

[1, 1, 8, 125, 3650, 171440, 11815940, 1122759980, 140645621840, 22456283261240, 4451225265169640, 1072410309912462440, 308628265617560695880, 104567048162852196877640, 41198829781936190483346440, 18676924223093561435394148040, 9652952812685808726911849225480]

cp's OEIS Frontend

A227851 G.f.: Sum_{n>=1} n^n * x^n * Product_{k=1..n} (k + x) / (1 + nkx + n*x^2).

Table of values

List of values

cp's OEIS Frontend

A227851 G.f.: Sum_{n>=1} n^n * x^n * Product_{k=1..n} (k + x) / (1 + n*k*x + n*x^2).

Table of values

List of values

A227851 G.f.: Sum_{n>=1} n^n * x^n * Product_{k=1..n} (k + x) / (1 + nkx + n*x^2).