A375551 - cp's OEIS frontend

A375551 a(n) = Sum_{k=0..n} k XOR n-k, where XOR is the bitwise exclusive disjunction. Row sums of A003987.

n	a(n)
0	0
1	2
2	4
3	12
4	12
5	22
6	32
7	56
8	48
9	58
10	68
11	100
12	108
13	142
14	176
15	240
16	208
17	210
18	212
19	252
20	252
21	294
22	336
23	424
24	416
25	458
26	500
27	596
28	636
29	734
30	832
31	992
32	896
33	866
34	836
35	876
36	844
37	886
38	928
39	1048
40	1008
41	1050
42	1092
43	1220
44	1260
45	1390
46	1520
47	1744
48	1680
49	1714
50	1748
51	1884
52	1916

[0, 2, 4, 12, 12, 22, 32, 56, 48, 58, 68, 100, 108, 142, 176, 240, 208, 210, 212, 252, 252, 294, 336, 424, 416, 458, 500, 596, 636, 734, 832, 992, 896, 866, 836, 876, 844, 886, 928, 1048, 1008, 1050, 1092, 1220, 1260, 1390, 1520, 1744, 1680, 1714, 1748, 1884, 1916]

cp's OEIS Frontend

A375551 a(n) = Sum_{k=0..n} k XOR n-k, where XOR is the bitwise exclusive disjunction. Row sums of A003987.

Table of values

List of values