A245534 - cp's OEIS frontend

A245534 a(n) = n^2 + floor(n/2)*(-1)^n.

n	a(n)
1	1
2	5
3	8
4	18
5	23
6	39
7	46
8	68
9	77
10	105
11	116
12	150
13	163
14	203
15	218
16	264
17	281
18	333
19	352
20	410
21	431
22	495
23	518
24	588
25	613
26	689
27	716
28	798
29	827
30	915
31	946
32	1040
33	1073
34	1173
35	1208
36	1314
37	1351
38	1463
39	1502
40	1620
41	1661
42	1785
43	1828
44	1958
45	2003
46	2139
47	2186
48	2328
49	2377
50	2525

[1, 5, 8, 18, 23, 39, 46, 68, 77, 105, 116, 150, 163, 203, 218, 264, 281, 333, 352, 410, 431, 495, 518, 588, 613, 689, 716, 798, 827, 915, 946, 1040, 1073, 1173, 1208, 1314, 1351, 1463, 1502, 1620, 1661, 1785, 1828, 1958, 2003, 2139, 2186, 2328, 2377, 2525]

cp's OEIS Frontend

A245534 a(n) = n^2 + floor(n/2)*(-1)^n.

Table of values

List of values