A235027 - cp's OEIS frontend

A235027 Reverse the bits of prime divisors of n (with 2 -> 2), and multiply together: a(0)=0, a(1)=1, a(2)=2, a(p) = revbits(p) for odd primes p, a(uv) = a(u) a(v) for composites.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	13
12	12
13	11
14	14
15	15
16	16
17	17
18	18
19	25
20	20
21	21
22	26
23	29
24	24
25	25
26	22
27	27
28	28
29	23
30	30
31	31
32	32
33	39
34	34
35	35
36	36
37	41
38	50
39	33
40	40
41	37
42	42
43	53
44	52
45	45
46	58
47	61
48	48
49	49
50	50
51	51
52	44
53	43
54	54
55	65
56	56
57	75
58	46
59	55
60	60
61	47
62	62
63	63
64	64
65	55
66	78
67	97

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 12, 11, 14, 15, 16, 17, 18, 25, 20, 21, 26, 29, 24, 25, 22, 27, 28, 23, 30, 31, 32, 39, 34, 35, 36, 41, 50, 33, 40, 37, 42, 53, 52, 45, 58, 61, 48, 49, 50, 51, 44, 43, 54, 65, 56, 75, 46, 55, 60, 47, 62, 63, 64, 55, 78, 97]

cp's OEIS Frontend

A235027 Reverse the bits of prime divisors of n (with 2 -> 2), and multiply together: a(0)=0, a(1)=1, a(2)=2, a(p) = revbits(p) for odd primes p, a(uv) = a(u) a(v) for composites.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	13
12	12
13	11
14	14
15	15
16	16
17	17
18	18
19	25
20	20
21	21
22	26
23	29
24	24
25	25
26	22
27	27
28	28
29	23
30	30
31	31
32	32
33	39
34	34
35	35
36	36
37	41
38	50
39	33
40	40
41	37
42	42
43	53
44	52
45	45
46	58
47	61
48	48
49	49
50	50
51	51
52	44
53	43
54	54
55	65
56	56
57	75
58	46
59	55
60	60
61	47
62	62
63	63
64	64
65	55
66	78
67	97

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	13
12	12
13	11
14	14
15	15
16	16
17	17
18	18
19	25
20	20
21	21
22	26
23	29
24	24
25	25
26	22
27	27
28	28
29	23
30	30
31	31
32	32
33	39
34	34
35	35
36	36
37	41
38	50
39	33
40	40
41	37
42	42
43	53
44	52
45	45
46	58
47	61
48	48
49	49
50	50
51	51
52	44
53	43
54	54
55	65
56	56
57	75
58	46
59	55
60	60
61	47
62	62
63	63
64	64
65	55
66	78
67	97

cp's OEIS Frontend

A235027 Reverse the bits of prime divisors of n (with 2 -> 2), and multiply together: a(0)=0, a(1)=1, a(2)=2, a(p) = revbits(p) for odd primes p, a(u*v) = a(u) * a(v) for composites.

Table of values

List of values

A235027 Reverse the bits of prime divisors of n (with 2 -> 2), and multiply together: a(0)=0, a(1)=1, a(2)=2, a(p) = revbits(p) for odd primes p, a(uv) = a(u) a(v) for composites.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	13
12	12
13	11
14	14
15	15
16	16
17	17
18	18
19	25
20	20
21	21
22	26
23	29
24	24
25	25
26	22
27	27
28	28
29	23
30	30
31	31
32	32
33	39
34	34
35	35
36	36
37	41
38	50
39	33
40	40
41	37
42	42
43	53
44	52
45	45
46	58
47	61
48	48
49	49
50	50
51	51
52	44
53	43
54	54
55	65
56	56
57	75
58	46
59	55
60	60
61	47
62	62
63	63
64	64
65	55
66	78
67	97