A033570 - cp's OEIS frontend

A033570 Pentagonal numbers with odd index: a(n) = (2n+1)(3*n+1).

n	a(n)
0	1
1	12
2	35
3	70
4	117
5	176
6	247
7	330
8	425
9	532
10	651
11	782
12	925
13	1080
14	1247
15	1426
16	1617
17	1820
18	2035
19	2262
20	2501
21	2752
22	3015
23	3290
24	3577
25	3876
26	4187
27	4510
28	4845
29	5192
30	5551
31	5922
32	6305
33	6700
34	7107
35	7526
36	7957
37	8400
38	8855
39	9322
40	9801
41	10292
42	10795
43	11310
44	11837

[1, 12, 35, 70, 117, 176, 247, 330, 425, 532, 651, 782, 925, 1080, 1247, 1426, 1617, 1820, 2035, 2262, 2501, 2752, 3015, 3290, 3577, 3876, 4187, 4510, 4845, 5192, 5551, 5922, 6305, 6700, 7107, 7526, 7957, 8400, 8855, 9322, 9801, 10292, 10795, 11310, 11837]

cp's OEIS Frontend

A033570 Pentagonal numbers with odd index: a(n) = (2n+1)(3*n+1).

Table of values

List of values

cp's OEIS Frontend

A033570 Pentagonal numbers with odd index: a(n) = (2*n+1)*(3*n+1).

Table of values

List of values

A033570 Pentagonal numbers with odd index: a(n) = (2n+1)(3*n+1).