A234741 - cp's OEIS frontend

A234741 a(n) is the base-2 carryless product of the prime factors of n; Encoding of the product of the polynomials over GF(2) represented by the prime factors of n (with multiplicity).

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

[1, 2, 3, 4, 5, 6, 7, 8, 5, 10, 11, 12, 13, 14, 15, 16, 17, 10, 19, 20, 9, 22, 23, 24, 17, 26, 15, 28, 29, 30, 31, 32, 29, 34, 27, 20, 37, 38, 23, 40, 41, 18, 43, 44, 17, 46, 47, 48, 21, 34, 51, 52, 53, 30, 39, 56, 53, 58, 59, 60, 61, 62, 27, 64, 57, 58, 67]

cp's OEIS Frontend

A234741 a(n) is the base-2 carryless product of the prime factors of n; Encoding of the product of the polynomials over GF(2) represented by the prime factors of n (with multiplicity).

Table of values

List of values

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

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

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