A172117 - cp's OEIS frontend

A172117 a(n) = n(n+1)(20*n-17)/6.

n	a(n)
0	0
1	1
2	23
3	86
4	210
5	415
6	721
7	1148
8	1716
9	2445
10	3355
11	4466
12	5798
13	7371
14	9205
15	11320
16	13736
17	16473
18	19551
19	22990
20	26810
21	31031
22	35673
23	40756
24	46300
25	52325
26	58851
27	65898
28	73486
29	81635
30	90365
31	99696
32	109648
33	120241
34	131495
35	143430
36	156066

[0, 1, 23, 86, 210, 415, 721, 1148, 1716, 2445, 3355, 4466, 5798, 7371, 9205, 11320, 13736, 16473, 19551, 22990, 26810, 31031, 35673, 40756, 46300, 52325, 58851, 65898, 73486, 81635, 90365, 99696, 109648, 120241, 131495, 143430, 156066]

cp's OEIS Frontend

A172117 a(n) = n(n+1)(20*n-17)/6.

Table of values

List of values

cp's OEIS Frontend

A172117 a(n) = n*(n+1)*(20*n-17)/6.

Table of values

List of values

A172117 a(n) = n(n+1)(20*n-17)/6.