A355621 - cp's OEIS frontend

A355621 a(1) = 1; for n > 1, a(n) is the number of terms in the first n-1 terms of the sequence that share a 1-bit with a(n-1) in their binary expansions.

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

[1, 1, 2, 1, 3, 5, 5, 6, 5, 8, 1, 8, 2, 4, 5, 11, 15, 17, 12, 11, 19, 17, 15, 23, 22, 19, 22, 21, 24, 16, 10, 18, 20, 21, 29, 33, 22, 30, 33, 23, 38, 31, 42, 28, 35, 37, 38, 37, 40, 22, 41, 40, 24, 33, 35, 46, 49, 49, 50, 47, 59, 60, 55, 61, 62, 61, 64, 1, 39, 63, 69, 58, 60, 64, 3, 60, 65, 46, 67]

cp's OEIS Frontend

A355621 a(1) = 1; for n > 1, a(n) is the number of terms in the first n-1 terms of the sequence that share a 1-bit with a(n-1) in their binary expansions.

Table of values

List of values

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

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

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