A376901 - cp's OEIS frontend

A376901 a(n) = (n*(n-1)+(-1)^n+5)/2.

n	a(n)
0	3
1	2
2	4
3	5
4	9
5	12
6	18
7	23
8	31
9	38
10	48
11	57
12	69
13	80
14	94
15	107
16	123
17	138
18	156
19	173
20	193
21	212
22	234
23	255
24	279
25	302
26	328
27	353
28	381
29	408
30	438
31	467
32	499
33	530
34	564
35	597
36	633
37	668
38	706
39	743
40	783
41	822
42	864
43	905
44	949
45	992
46	1038
47	1083
48	1131
49	1178
50	1228
51	1277
52	1329
53	1380
54	1434

[3, 2, 4, 5, 9, 12, 18, 23, 31, 38, 48, 57, 69, 80, 94, 107, 123, 138, 156, 173, 193, 212, 234, 255, 279, 302, 328, 353, 381, 408, 438, 467, 499, 530, 564, 597, 633, 668, 706, 743, 783, 822, 864, 905, 949, 992, 1038, 1083, 1131, 1178, 1228, 1277, 1329, 1380, 1434]

cp's OEIS Frontend

A376901 a(n) = (n*(n-1)+(-1)^n+5)/2.

Table of values

List of values