A158842 - cp's OEIS frontend

A158842 a(n) = 1 + n(n+1)(n-1)/2.

n	a(n)
0	1
1	1
2	4
3	13
4	31
5	61
6	106
7	169
8	253
9	361
10	496
11	661
12	859
13	1093
14	1366
15	1681
16	2041
17	2449
18	2908
19	3421
20	3991
21	4621
22	5314
23	6073
24	6901
25	7801
26	8776
27	9829
28	10963
29	12181
30	13486
31	14881
32	16369
33	17953
34	19636
35	21421
36	23311
37	25309
38	27418
39	29641
40	31981
41	34441
42	37024
43	39733
44	42571
45	45541
46	48646

[1, 1, 4, 13, 31, 61, 106, 169, 253, 361, 496, 661, 859, 1093, 1366, 1681, 2041, 2449, 2908, 3421, 3991, 4621, 5314, 6073, 6901, 7801, 8776, 9829, 10963, 12181, 13486, 14881, 16369, 17953, 19636, 21421, 23311, 25309, 27418, 29641, 31981, 34441, 37024, 39733, 42571, 45541, 48646]

cp's OEIS Frontend

A158842 a(n) = 1 + n(n+1)(n-1)/2.

Table of values

List of values

cp's OEIS Frontend

A158842 a(n) = 1 + n*(n+1)*(n-1)/2.

Table of values

List of values

A158842 a(n) = 1 + n(n+1)(n-1)/2.