A302025 - cp's OEIS frontend

A302025 Permutation of natural numbers mapping ordinary factorization to "Ludic factorization": a(1) = 1, a(2n) = 2*a(n), a(A003961(n)) = A269379(a(n)).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	23
20	20
21	27
22	22
23	25
24	24
25	19
26	26
27	21
28	28
29	29
30	30
31	37
32	32
33	39
34	34
35	35
36	36
37	41
38	46
39	63
40	40
41	43
42	54
43	47
44	44
45	33
46	50
47	53
48	48
49	31
50	38
51	75
52	52
53	61
54	42
55	65
56	56
57	99
58	58
59	67
60	60
61	71
62	74
63	57
64	64
65	95
66	78
67	77
68	68
69	135
70	70
71	83
72	72
73	89
74	82
75	51
76	92
77	59
78	126
79	91
80	80
81	45
82	86
83	97
84	108
85	155
86	94
87	147
88	88

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 23, 20, 27, 22, 25, 24, 19, 26, 21, 28, 29, 30, 37, 32, 39, 34, 35, 36, 41, 46, 63, 40, 43, 54, 47, 44, 33, 50, 53, 48, 31, 38, 75, 52, 61, 42, 65, 56, 99, 58, 67, 60, 71, 74, 57, 64, 95, 78, 77, 68, 135, 70, 83, 72, 89, 82, 51, 92, 59, 126, 91, 80, 45, 86, 97, 108, 155, 94, 147, 88]

cp's OEIS Frontend

A302025 Permutation of natural numbers mapping ordinary factorization to "Ludic factorization": a(1) = 1, a(2n) = 2*a(n), a(A003961(n)) = A269379(a(n)).

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	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	23
20	20
21	27
22	22
23	25
24	24
25	19
26	26
27	21
28	28
29	29
30	30
31	37
32	32
33	39
34	34
35	35
36	36
37	41
38	46
39	63
40	40
41	43
42	54
43	47
44	44
45	33
46	50
47	53
48	48
49	31
50	38
51	75
52	52
53	61
54	42
55	65
56	56
57	99
58	58
59	67
60	60
61	71
62	74
63	57
64	64
65	95
66	78
67	77
68	68
69	135
70	70
71	83
72	72
73	89
74	82
75	51
76	92
77	59
78	126
79	91
80	80
81	45
82	86
83	97
84	108
85	155
86	94
87	147
88	88

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	23
20	20
21	27
22	22
23	25
24	24
25	19
26	26
27	21
28	28
29	29
30	30
31	37
32	32
33	39
34	34
35	35
36	36
37	41
38	46
39	63
40	40
41	43
42	54
43	47
44	44
45	33
46	50
47	53
48	48
49	31
50	38
51	75
52	52
53	61
54	42
55	65
56	56
57	99
58	58
59	67
60	60
61	71
62	74
63	57
64	64
65	95
66	78
67	77
68	68
69	135
70	70
71	83
72	72
73	89
74	82
75	51
76	92
77	59
78	126
79	91
80	80
81	45
82	86
83	97
84	108
85	155
86	94
87	147
88	88

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	18
19	23
20	20
21	27
22	22
23	25
24	24
25	19
26	26
27	21
28	28
29	29
30	30
31	37
32	32
33	39
34	34
35	35
36	36
37	41
38	46
39	63
40	40
41	43
42	54
43	47
44	44
45	33
46	50
47	53
48	48
49	31
50	38
51	75
52	52
53	61
54	42
55	65
56	56
57	99
58	58
59	67
60	60
61	71
62	74
63	57
64	64
65	95
66	78
67	77
68	68
69	135
70	70
71	83
72	72
73	89
74	82
75	51
76	92
77	59
78	126
79	91
80	80
81	45
82	86
83	97
84	108
85	155
86	94
87	147
88	88