A387407 - cp's OEIS frontend

A387407 Partial sums of A387422, where A387422 is the length of the maximal common prefix of the binary expansions of n and sigma(n).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	8
7	9
8	10
9	11
10	13
11	14
12	16
13	18
14	20
15	22
16	23
17	26
18	30
19	32
20	36
21	38
22	40
23	41
24	43
25	45
26	46
27	47
28	52
29	55
30	56
31	57
32	58
33	59
34	60
35	61
36	63
37	67
38	68
39	69
40	72
41	76
42	77
43	80
44	83
45	85
46	87
47	88
48	90
49	92
50	93
51	94
52	97
53	101
54	103
55	104
56	107
57	108
58	109
59	112
60	113
61	117
62	119
63	121
64	122
65	124
66	127
67	131
68	132
69	133
70	136
71	139
72	140
73	145
74	146
75	147

[1, 2, 3, 4, 5, 8, 9, 10, 11, 13, 14, 16, 18, 20, 22, 23, 26, 30, 32, 36, 38, 40, 41, 43, 45, 46, 47, 52, 55, 56, 57, 58, 59, 60, 61, 63, 67, 68, 69, 72, 76, 77, 80, 83, 85, 87, 88, 90, 92, 93, 94, 97, 101, 103, 104, 107, 108, 109, 112, 113, 117, 119, 121, 122, 124, 127, 131, 132, 133, 136, 139, 140, 145, 146, 147]

cp's OEIS Frontend

A387407 Partial sums of A387422, where A387422 is the length of the maximal common prefix of the binary expansions of n and sigma(n).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	8
7	9
8	10
9	11
10	13
11	14
12	16
13	18
14	20
15	22
16	23
17	26
18	30
19	32
20	36
21	38
22	40
23	41
24	43
25	45
26	46
27	47
28	52
29	55
30	56
31	57
32	58
33	59
34	60
35	61
36	63
37	67
38	68
39	69
40	72
41	76
42	77
43	80
44	83
45	85
46	87
47	88
48	90
49	92
50	93
51	94
52	97
53	101
54	103
55	104
56	107
57	108
58	109
59	112
60	113
61	117
62	119
63	121
64	122
65	124
66	127
67	131
68	132
69	133
70	136
71	139
72	140
73	145
74	146
75	147

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	8
7	9
8	10
9	11
10	13
11	14
12	16
13	18
14	20
15	22
16	23
17	26
18	30
19	32
20	36
21	38
22	40
23	41
24	43
25	45
26	46
27	47
28	52
29	55
30	56
31	57
32	58
33	59
34	60
35	61
36	63
37	67
38	68
39	69
40	72
41	76
42	77
43	80
44	83
45	85
46	87
47	88
48	90
49	92
50	93
51	94
52	97
53	101
54	103
55	104
56	107
57	108
58	109
59	112
60	113
61	117
62	119
63	121
64	122
65	124
66	127
67	131
68	132
69	133
70	136
71	139
72	140
73	145
74	146
75	147

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	8
7	9
8	10
9	11
10	13
11	14
12	16
13	18
14	20
15	22
16	23
17	26
18	30
19	32
20	36
21	38
22	40
23	41
24	43
25	45
26	46
27	47
28	52
29	55
30	56
31	57
32	58
33	59
34	60
35	61
36	63
37	67
38	68
39	69
40	72
41	76
42	77
43	80
44	83
45	85
46	87
47	88
48	90
49	92
50	93
51	94
52	97
53	101
54	103
55	104
56	107
57	108
58	109
59	112
60	113
61	117
62	119
63	121
64	122
65	124
66	127
67	131
68	132
69	133
70	136
71	139
72	140
73	145
74	146
75	147