A115067 - cp's OEIS frontend

A115067 a(n) = (3*n^2 - n - 2)/2.

n	a(n)
1	0
2	4
3	11
4	21
5	34
6	50
7	69
8	91
9	116
10	144
11	175
12	209
13	246
14	286
15	329
16	375
17	424
18	476
19	531
20	589
21	650
22	714
23	781
24	851
25	924
26	1000
27	1079
28	1161
29	1246
30	1334
31	1425
32	1519
33	1616
34	1716
35	1819
36	1925
37	2034
38	2146
39	2261
40	2379
41	2500
42	2624
43	2751
44	2881
45	3014
46	3150
47	3289
48	3431
49	3576

[0, 4, 11, 21, 34, 50, 69, 91, 116, 144, 175, 209, 246, 286, 329, 375, 424, 476, 531, 589, 650, 714, 781, 851, 924, 1000, 1079, 1161, 1246, 1334, 1425, 1519, 1616, 1716, 1819, 1925, 2034, 2146, 2261, 2379, 2500, 2624, 2751, 2881, 3014, 3150, 3289, 3431, 3576]

cp's OEIS Frontend

A115067 a(n) = (3*n^2 - n - 2)/2.

Table of values

List of values