A318461 - cp's OEIS frontend

A318461 a(n) = Sum_{d|n, d <= n/d} (d OR n/d), where OR is bitwise-or (A003986).

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	10
7	7
8	15
9	12
10	18
11	11
12	26
13	13
14	22
15	22
16	31
17	17
18	37
19	19
20	36
21	28
22	34
23	23
24	56
25	30
26	42
27	38
28	50
29	29
30	64
31	31
32	63
33	44
34	54
35	42
36	89
37	37
38	58
39	54
40	90
41	41
42	88
43	43
44	82
45	73
46	70
47	47
48	120
49	56
50	93
51	70
52	92
53	53
54	116
55	70
56	116
57	76
58	90
59	59
60	156
61	61
62	94
63	101
64	127
65	78
66	140
67	67
68	124
69	92
70	136
71	71
72	183
73	73
74	114
75	117
76	138
77	92
78	160
79	79

[1, 3, 3, 7, 5, 10, 7, 15, 12, 18, 11, 26, 13, 22, 22, 31, 17, 37, 19, 36, 28, 34, 23, 56, 30, 42, 38, 50, 29, 64, 31, 63, 44, 54, 42, 89, 37, 58, 54, 90, 41, 88, 43, 82, 73, 70, 47, 120, 56, 93, 70, 92, 53, 116, 70, 116, 76, 90, 59, 156, 61, 94, 101, 127, 78, 140, 67, 124, 92, 136, 71, 183, 73, 114, 117, 138, 92, 160, 79]

cp's OEIS Frontend

A318461 a(n) = Sum_{d|n, d <= n/d} (d OR n/d), where OR is bitwise-or (A003986).

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	10
7	7
8	15
9	12
10	18
11	11
12	26
13	13
14	22
15	22
16	31
17	17
18	37
19	19
20	36
21	28
22	34
23	23
24	56
25	30
26	42
27	38
28	50
29	29
30	64
31	31
32	63
33	44
34	54
35	42
36	89
37	37
38	58
39	54
40	90
41	41
42	88
43	43
44	82
45	73
46	70
47	47
48	120
49	56
50	93
51	70
52	92
53	53
54	116
55	70
56	116
57	76
58	90
59	59
60	156
61	61
62	94
63	101
64	127
65	78
66	140
67	67
68	124
69	92
70	136
71	71
72	183
73	73
74	114
75	117
76	138
77	92
78	160
79	79

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	10
7	7
8	15
9	12
10	18
11	11
12	26
13	13
14	22
15	22
16	31
17	17
18	37
19	19
20	36
21	28
22	34
23	23
24	56
25	30
26	42
27	38
28	50
29	29
30	64
31	31
32	63
33	44
34	54
35	42
36	89
37	37
38	58
39	54
40	90
41	41
42	88
43	43
44	82
45	73
46	70
47	47
48	120
49	56
50	93
51	70
52	92
53	53
54	116
55	70
56	116
57	76
58	90
59	59
60	156
61	61
62	94
63	101
64	127
65	78
66	140
67	67
68	124
69	92
70	136
71	71
72	183
73	73
74	114
75	117
76	138
77	92
78	160
79	79

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	10
7	7
8	15
9	12
10	18
11	11
12	26
13	13
14	22
15	22
16	31
17	17
18	37
19	19
20	36
21	28
22	34
23	23
24	56
25	30
26	42
27	38
28	50
29	29
30	64
31	31
32	63
33	44
34	54
35	42
36	89
37	37
38	58
39	54
40	90
41	41
42	88
43	43
44	82
45	73
46	70
47	47
48	120
49	56
50	93
51	70
52	92
53	53
54	116
55	70
56	116
57	76
58	90
59	59
60	156
61	61
62	94
63	101
64	127
65	78
66	140
67	67
68	124
69	92
70	136
71	71
72	183
73	73
74	114
75	117
76	138
77	92
78	160
79	79