A286468 - cp's OEIS frontend

A286468 Run lengths in the binary expansion of n are one more than the exponents of corresponding primes in the prime factorization of a(n).

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	4
8	4
9	3
10	1
11	2
12	6
13	5
14	9
15	8
16	8
17	9
18	5
19	6
20	2
21	1
22	3
23	4
24	12
25	15
26	7
27	10
28	18
29	25
30	27
31	16
32	16
33	27
34	25
35	18
36	10
37	7
38	15
39	12
40	4
41	3
42	1
43	2
44	6
45	5
46	9
47	8
48	24
49	45
50	35
51	30
52	14
53	11
54	21
55	20
56	36
57	75
58	49
59	50
60	54
61	125
62	81
63	32
64	32
65	81
66	125
67	54
68	50
69	49
70	75
71	36
72	20
73	21
74	11
75	14
76	30
77	35
78	45
79	24
80	8
81	9
82	5
83	6
84	2
85	1
86	3
87	4
88	12
89	15
90	7
91	10
92	18
93	25
94	27
95	16
96	48
97	135
98	175
99	90
100	70

[1, 1, 2, 2, 1, 3, 4, 4, 3, 1, 2, 6, 5, 9, 8, 8, 9, 5, 6, 2, 1, 3, 4, 12, 15, 7, 10, 18, 25, 27, 16, 16, 27, 25, 18, 10, 7, 15, 12, 4, 3, 1, 2, 6, 5, 9, 8, 24, 45, 35, 30, 14, 11, 21, 20, 36, 75, 49, 50, 54, 125, 81, 32, 32, 81, 125, 54, 50, 49, 75, 36, 20, 21, 11, 14, 30, 35, 45, 24, 8, 9, 5, 6, 2, 1, 3, 4, 12, 15, 7, 10, 18, 25, 27, 16, 48, 135, 175, 90, 70]

cp's OEIS Frontend

A286468 Run lengths in the binary expansion of n are one more than the exponents of corresponding primes in the prime factorization of a(n).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	4
8	4
9	3
10	1
11	2
12	6
13	5
14	9
15	8
16	8
17	9
18	5
19	6
20	2
21	1
22	3
23	4
24	12
25	15
26	7
27	10
28	18
29	25
30	27
31	16
32	16
33	27
34	25
35	18
36	10
37	7
38	15
39	12
40	4
41	3
42	1
43	2
44	6
45	5
46	9
47	8
48	24
49	45
50	35
51	30
52	14
53	11
54	21
55	20
56	36
57	75
58	49
59	50
60	54
61	125
62	81
63	32
64	32
65	81
66	125
67	54
68	50
69	49
70	75
71	36
72	20
73	21
74	11
75	14
76	30
77	35
78	45
79	24
80	8
81	9
82	5
83	6
84	2
85	1
86	3
87	4
88	12
89	15
90	7
91	10
92	18
93	25
94	27
95	16
96	48
97	135
98	175
99	90
100	70

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	4
8	4
9	3
10	1
11	2
12	6
13	5
14	9
15	8
16	8
17	9
18	5
19	6
20	2
21	1
22	3
23	4
24	12
25	15
26	7
27	10
28	18
29	25
30	27
31	16
32	16
33	27
34	25
35	18
36	10
37	7
38	15
39	12
40	4
41	3
42	1
43	2
44	6
45	5
46	9
47	8
48	24
49	45
50	35
51	30
52	14
53	11
54	21
55	20
56	36
57	75
58	49
59	50
60	54
61	125
62	81
63	32
64	32
65	81
66	125
67	54
68	50
69	49
70	75
71	36
72	20
73	21
74	11
75	14
76	30
77	35
78	45
79	24
80	8
81	9
82	5
83	6
84	2
85	1
86	3
87	4
88	12
89	15
90	7
91	10
92	18
93	25
94	27
95	16
96	48
97	135
98	175
99	90
100	70

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	4
8	4
9	3
10	1
11	2
12	6
13	5
14	9
15	8
16	8
17	9
18	5
19	6
20	2
21	1
22	3
23	4
24	12
25	15
26	7
27	10
28	18
29	25
30	27
31	16
32	16
33	27
34	25
35	18
36	10
37	7
38	15
39	12
40	4
41	3
42	1
43	2
44	6
45	5
46	9
47	8
48	24
49	45
50	35
51	30
52	14
53	11
54	21
55	20
56	36
57	75
58	49
59	50
60	54
61	125
62	81
63	32
64	32
65	81
66	125
67	54
68	50
69	49
70	75
71	36
72	20
73	21
74	11
75	14
76	30
77	35
78	45
79	24
80	8
81	9
82	5
83	6
84	2
85	1
86	3
87	4
88	12
89	15
90	7
91	10
92	18
93	25
94	27
95	16
96	48
97	135
98	175
99	90
100	70