A267691 - cp's OEIS frontend

A267691 a(n) = (n + 1)(6n^4 - 21n^3 + 31n^2 - 31*n + 30)/30.

n	a(n)
0	1
1	1
2	2
3	18
4	99
5	355
6	980
7	2276
8	4677
9	8773
10	15334
11	25334
12	39975
13	60711
14	89272
15	127688
16	178313
17	243849
18	327370
19	432346
20	562667
21	722667
22	917148
23	1151404
24	1431245
25	1763021
26	2153646
27	2610622
28	3142063
29	3756719
30	4464000
31	5274000
32	6197521
33	7246097
34	8432018
35	9768354

[1, 1, 2, 18, 99, 355, 980, 2276, 4677, 8773, 15334, 25334, 39975, 60711, 89272, 127688, 178313, 243849, 327370, 432346, 562667, 722667, 917148, 1151404, 1431245, 1763021, 2153646, 2610622, 3142063, 3756719, 4464000, 5274000, 6197521, 7246097, 8432018, 9768354]

cp's OEIS Frontend

A267691 a(n) = (n + 1)(6n^4 - 21n^3 + 31n^2 - 31*n + 30)/30.

Table of values

List of values

cp's OEIS Frontend

A267691 a(n) = (n + 1)*(6*n^4 - 21*n^3 + 31*n^2 - 31*n + 30)/30.

Table of values

List of values

A267691 a(n) = (n + 1)(6n^4 - 21n^3 + 31n^2 - 31*n + 30)/30.