A006583 - cp's OEIS frontend

A006583 a(n) = Sum_{k=1..n-1} (k OR n-k).

n	a(n)
2	1
3	6
4	8
5	16
6	25
7	42
8	44
9	56
10	69
11	94
12	108
13	136
14	165
15	210
16	208
17	224
18	241
19	278
20	296
21	336
22	377
23	442
24	460
25	504
26	549
27	622
28	668
29	744
30	821
31	930
32	912
33	928
34	945
35	998
36	1016
37	1072
38	1129
39	1226
40	1244
41	1304

[1, 6, 8, 16, 25, 42, 44, 56, 69, 94, 108, 136, 165, 210, 208, 224, 241, 278, 296, 336, 377, 442, 460, 504, 549, 622, 668, 744, 821, 930, 912, 928, 945, 998, 1016, 1072, 1129, 1226, 1244, 1304]

cp's OEIS Frontend

A006583 a(n) = Sum_{k=1..n-1} (k OR n-k).

Table of values

List of values