A139581 - cp's OEIS frontend

A139581 a(n) = n(2n + 19).

n	a(n)
0	0
1	21
2	46
3	75
4	108
5	145
6	186
7	231
8	280
9	333
10	390
11	451
12	516
13	585
14	658
15	735
16	816
17	901
18	990
19	1083
20	1180
21	1281
22	1386
23	1495
24	1608
25	1725
26	1846
27	1971
28	2100
29	2233
30	2370
31	2511
32	2656
33	2805
34	2958
35	3115
36	3276
37	3441
38	3610
39	3783
40	3960
41	4141

[0, 21, 46, 75, 108, 145, 186, 231, 280, 333, 390, 451, 516, 585, 658, 735, 816, 901, 990, 1083, 1180, 1281, 1386, 1495, 1608, 1725, 1846, 1971, 2100, 2233, 2370, 2511, 2656, 2805, 2958, 3115, 3276, 3441, 3610, 3783, 3960, 4141]

cp's OEIS Frontend

A139581 a(n) = n(2n + 19).

Table of values

List of values

cp's OEIS Frontend

A139581 a(n) = n*(2*n + 19).

Table of values

List of values

A139581 a(n) = n(2n + 19).