A302710 - cp's OEIS frontend

A302710 a(n) = trinomial(2n, 4) = (1/6)n*(2n - 1)(2n^2 + 7n - 3).

n	a(n)
0	0
1	1
2	19
3	90
4	266
5	615
6	1221
7	2184
8	3620
9	5661
10	8455
11	12166
12	16974
13	23075
14	30681
15	40020
16	51336
17	64889
18	80955
19	99826
20	121810
21	147231
22	176429
23	209760
24	247596
25	290325
26	338351
27	392094
28	451990
29	518491
30	592065
31	673196
32	762384
33	860145
34	967011
35	1083530
36	1210266
37	1347799
38	1496725
39	1657656
40	1831220

[0, 1, 19, 90, 266, 615, 1221, 2184, 3620, 5661, 8455, 12166, 16974, 23075, 30681, 40020, 51336, 64889, 80955, 99826, 121810, 147231, 176429, 209760, 247596, 290325, 338351, 392094, 451990, 518491, 592065, 673196, 762384, 860145, 967011, 1083530, 1210266, 1347799, 1496725, 1657656, 1831220]

cp's OEIS Frontend

A302710 a(n) = trinomial(2n, 4) = (1/6)n*(2n - 1)(2n^2 + 7n - 3).

Table of values

List of values

cp's OEIS Frontend

A302710 a(n) = trinomial(2*n, 4) = (1/6)*n*(2*n - 1)*(2*n^2 + 7*n - 3).

Table of values

List of values

A302710 a(n) = trinomial(2n, 4) = (1/6)n*(2n - 1)(2n^2 + 7n - 3).