A221094 - cp's OEIS frontend

A221094 O.g.f.: Sum_{n>=0} n!^2 * x^n / Product_{k=1..n} (1 + k(n-k+1)x).

n	a(n)
0	1
1	1
2	3
3	21
4	263
5	5165
6	146335
7	5649397
8	285069735
9	18214525629
10	1437313035887
11	137272113393413
12	15605422414146487
13	2082375903282194893
14	322303158660868063359
15	57271523430269553109269
16	11579903781095519639058119
17	2643368434346324374530280157
18	676521525314300179793917303951

[1, 1, 3, 21, 263, 5165, 146335, 5649397, 285069735, 18214525629, 1437313035887, 137272113393413, 15605422414146487, 2082375903282194893, 322303158660868063359, 57271523430269553109269, 11579903781095519639058119, 2643368434346324374530280157, 676521525314300179793917303951]

cp's OEIS Frontend

A221094 O.g.f.: Sum_{n>=0} n!^2 * x^n / Product_{k=1..n} (1 + k(n-k+1)x).

Table of values

List of values

cp's OEIS Frontend

A221094 O.g.f.: Sum_{n>=0} n!^2 * x^n / Product_{k=1..n} (1 + k*(n-k+1)*x).

Table of values

List of values

A221094 O.g.f.: Sum_{n>=0} n!^2 * x^n / Product_{k=1..n} (1 + k(n-k+1)x).