A213037 - cp's OEIS frontend

A213037 a(n) = n^2 - 2*floor(n/2)^2.

n	a(n)
0	0
1	1
2	2
3	7
4	8
5	17
6	18
7	31
8	32
9	49
10	50
11	71
12	72
13	97
14	98
15	127
16	128
17	161
18	162
19	199
20	200
21	241
22	242
23	287
24	288
25	337
26	338
27	391
28	392
29	449
30	450
31	511
32	512
33	577
34	578
35	647
36	648
37	721
38	722
39	799
40	800
41	881
42	882
43	967
44	968
45	1057
46	1058
47	1151
48	1152
49	1249
50	1250
51	1351

[0, 1, 2, 7, 8, 17, 18, 31, 32, 49, 50, 71, 72, 97, 98, 127, 128, 161, 162, 199, 200, 241, 242, 287, 288, 337, 338, 391, 392, 449, 450, 511, 512, 577, 578, 647, 648, 721, 722, 799, 800, 881, 882, 967, 968, 1057, 1058, 1151, 1152, 1249, 1250, 1351]

cp's OEIS Frontend

A213037 a(n) = n^2 - 2*floor(n/2)^2.

Table of values

List of values