A152949 - cp's OEIS frontend

A152949 a(n) = 3 + binomial(n-1,2).

n	a(n)
1	3
2	3
3	4
4	6
5	9
6	13
7	18
8	24
9	31
10	39
11	48
12	58
13	69
14	81
15	94
16	108
17	123
18	139
19	156
20	174
21	193
22	213
23	234
24	256
25	279
26	303
27	328
28	354
29	381
30	409
31	438
32	468
33	499
34	531
35	564
36	598
37	633
38	669
39	706
40	744
41	783
42	823
43	864
44	906
45	949
46	993
47	1038
48	1084
49	1131
50	1179
51	1228
52	1278
53	1329
54	1381

[3, 3, 4, 6, 9, 13, 18, 24, 31, 39, 48, 58, 69, 81, 94, 108, 123, 139, 156, 174, 193, 213, 234, 256, 279, 303, 328, 354, 381, 409, 438, 468, 499, 531, 564, 598, 633, 669, 706, 744, 783, 823, 864, 906, 949, 993, 1038, 1084, 1131, 1179, 1228, 1278, 1329, 1381]

cp's OEIS Frontend

A152949 a(n) = 3 + binomial(n-1,2).

Table of values

List of values