A077414 - cp's OEIS frontend

A077414 a(n) = n(n - 1)(n + 2)/2.

n	a(n)
1	0
2	4
3	15
4	36
5	70
6	120
7	189
8	280
9	396
10	540
11	715
12	924
13	1170
14	1456
15	1785
16	2160
17	2584
18	3060
19	3591
20	4180
21	4830
22	5544
23	6325
24	7176
25	8100
26	9100
27	10179
28	11340
29	12586
30	13920
31	15345
32	16864
33	18480
34	20196
35	22015
36	23940
37	25974
38	28120
39	30381
40	32760
41	35260

[0, 4, 15, 36, 70, 120, 189, 280, 396, 540, 715, 924, 1170, 1456, 1785, 2160, 2584, 3060, 3591, 4180, 4830, 5544, 6325, 7176, 8100, 9100, 10179, 11340, 12586, 13920, 15345, 16864, 18480, 20196, 22015, 23940, 25974, 28120, 30381, 32760, 35260]

cp's OEIS Frontend

A077414 a(n) = n(n - 1)(n + 2)/2.

Table of values

List of values

cp's OEIS Frontend

A077414 a(n) = n*(n - 1)*(n + 2)/2.

Table of values

List of values

A077414 a(n) = n(n - 1)(n + 2)/2.