A279336 - cp's OEIS frontend

A279336 Permutation of natural numbers: a(1) = 1; for n > 1, if A079559(n) = 0, a(n) = 2*A234016(n), otherwise a(n) = A003961(a(A213714(n))).

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	7
8	9
9	8
10	15
11	11
12	10
13	12
14	14
15	25
16	27
17	16
18	35
19	13
20	18
21	20
22	21
23	45
24	22
25	33
26	49
27	24
28	26
29	28
30	30
31	125
32	81
33	32
34	77
35	17
36	34
37	36
38	75
39	63
40	38
41	55
42	175
43	40
44	42
45	44
46	39
47	65
48	46
49	121
50	135
51	48
52	50
53	51
54	99
55	52
56	105
57	343
58	54
59	56
60	58
61	60
62	62
63	625
64	243
65	64
66	143
67	19
68	66
69	68
70	57
71	225
72	70
73	245
74	275
75	72
76	74
77	76
78	69
79	91
80	78
81	539
82	189
83	80

[1, 2, 3, 5, 4, 6, 7, 9, 8, 15, 11, 10, 12, 14, 25, 27, 16, 35, 13, 18, 20, 21, 45, 22, 33, 49, 24, 26, 28, 30, 125, 81, 32, 77, 17, 34, 36, 75, 63, 38, 55, 175, 40, 42, 44, 39, 65, 46, 121, 135, 48, 50, 51, 99, 52, 105, 343, 54, 56, 58, 60, 62, 625, 243, 64, 143, 19, 66, 68, 57, 225, 70, 245, 275, 72, 74, 76, 69, 91, 78, 539, 189, 80]

cp's OEIS Frontend

A279336 Permutation of natural numbers: a(1) = 1; for n > 1, if A079559(n) = 0, a(n) = 2*A234016(n), otherwise a(n) = A003961(a(A213714(n))).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	7
8	9
9	8
10	15
11	11
12	10
13	12
14	14
15	25
16	27
17	16
18	35
19	13
20	18
21	20
22	21
23	45
24	22
25	33
26	49
27	24
28	26
29	28
30	30
31	125
32	81
33	32
34	77
35	17
36	34
37	36
38	75
39	63
40	38
41	55
42	175
43	40
44	42
45	44
46	39
47	65
48	46
49	121
50	135
51	48
52	50
53	51
54	99
55	52
56	105
57	343
58	54
59	56
60	58
61	60
62	62
63	625
64	243
65	64
66	143
67	19
68	66
69	68
70	57
71	225
72	70
73	245
74	275
75	72
76	74
77	76
78	69
79	91
80	78
81	539
82	189
83	80

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	7
8	9
9	8
10	15
11	11
12	10
13	12
14	14
15	25
16	27
17	16
18	35
19	13
20	18
21	20
22	21
23	45
24	22
25	33
26	49
27	24
28	26
29	28
30	30
31	125
32	81
33	32
34	77
35	17
36	34
37	36
38	75
39	63
40	38
41	55
42	175
43	40
44	42
45	44
46	39
47	65
48	46
49	121
50	135
51	48
52	50
53	51
54	99
55	52
56	105
57	343
58	54
59	56
60	58
61	60
62	62
63	625
64	243
65	64
66	143
67	19
68	66
69	68
70	57
71	225
72	70
73	245
74	275
75	72
76	74
77	76
78	69
79	91
80	78
81	539
82	189
83	80

n	a(n)
1	1
2	2
3	3
4	5
5	4
6	6
7	7
8	9
9	8
10	15
11	11
12	10
13	12
14	14
15	25
16	27
17	16
18	35
19	13
20	18
21	20
22	21
23	45
24	22
25	33
26	49
27	24
28	26
29	28
30	30
31	125
32	81
33	32
34	77
35	17
36	34
37	36
38	75
39	63
40	38
41	55
42	175
43	40
44	42
45	44
46	39
47	65
48	46
49	121
50	135
51	48
52	50
53	51
54	99
55	52
56	105
57	343
58	54
59	56
60	58
61	60
62	62
63	625
64	243
65	64
66	143
67	19
68	66
69	68
70	57
71	225
72	70
73	245
74	275
75	72
76	74
77	76
78	69
79	91
80	78
81	539
82	189
83	80