A268675 - cp's OEIS frontend

A268675 Self-inverse permutation of natural numbers: a(1) = 1; a(n) = A000079(A193231(A007814(n))) * A250469(a(A268674(n))).

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	6
7	7
8	4
9	21
10	10
11	11
12	24
13	13
14	14
15	15
16	32
17	17
18	42
19	19
20	40
21	9
22	22
23	23
24	12
25	55
26	26
27	27
28	56
29	29
30	30
31	31
32	16
33	69
34	34
35	35
36	168
37	37
38	38
39	39
40	20
41	41
42	18
43	43
44	88
45	93
46	46
47	47
48	96
49	91
50	110
51	123
52	104
53	53
54	54
55	25
56	28
57	117
58	58
59	59
60	120
61	61
62	62
63	63
64	64
65	65
66	138
67	67
68	136
69	33
70	70
71	71
72	84
73	73
74	74
75	75
76	152
77	77
78	78
79	79
80	160

[1, 2, 3, 8, 5, 6, 7, 4, 21, 10, 11, 24, 13, 14, 15, 32, 17, 42, 19, 40, 9, 22, 23, 12, 55, 26, 27, 56, 29, 30, 31, 16, 69, 34, 35, 168, 37, 38, 39, 20, 41, 18, 43, 88, 93, 46, 47, 96, 91, 110, 123, 104, 53, 54, 25, 28, 117, 58, 59, 120, 61, 62, 63, 64, 65, 138, 67, 136, 33, 70, 71, 84, 73, 74, 75, 152, 77, 78, 79, 160]

cp's OEIS Frontend

A268675 Self-inverse permutation of natural numbers: a(1) = 1; a(n) = A000079(A193231(A007814(n))) * A250469(a(A268674(n))).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	6
7	7
8	4
9	21
10	10
11	11
12	24
13	13
14	14
15	15
16	32
17	17
18	42
19	19
20	40
21	9
22	22
23	23
24	12
25	55
26	26
27	27
28	56
29	29
30	30
31	31
32	16
33	69
34	34
35	35
36	168
37	37
38	38
39	39
40	20
41	41
42	18
43	43
44	88
45	93
46	46
47	47
48	96
49	91
50	110
51	123
52	104
53	53
54	54
55	25
56	28
57	117
58	58
59	59
60	120
61	61
62	62
63	63
64	64
65	65
66	138
67	67
68	136
69	33
70	70
71	71
72	84
73	73
74	74
75	75
76	152
77	77
78	78
79	79
80	160

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	6
7	7
8	4
9	21
10	10
11	11
12	24
13	13
14	14
15	15
16	32
17	17
18	42
19	19
20	40
21	9
22	22
23	23
24	12
25	55
26	26
27	27
28	56
29	29
30	30
31	31
32	16
33	69
34	34
35	35
36	168
37	37
38	38
39	39
40	20
41	41
42	18
43	43
44	88
45	93
46	46
47	47
48	96
49	91
50	110
51	123
52	104
53	53
54	54
55	25
56	28
57	117
58	58
59	59
60	120
61	61
62	62
63	63
64	64
65	65
66	138
67	67
68	136
69	33
70	70
71	71
72	84
73	73
74	74
75	75
76	152
77	77
78	78
79	79
80	160

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	6
7	7
8	4
9	21
10	10
11	11
12	24
13	13
14	14
15	15
16	32
17	17
18	42
19	19
20	40
21	9
22	22
23	23
24	12
25	55
26	26
27	27
28	56
29	29
30	30
31	31
32	16
33	69
34	34
35	35
36	168
37	37
38	38
39	39
40	20
41	41
42	18
43	43
44	88
45	93
46	46
47	47
48	96
49	91
50	110
51	123
52	104
53	53
54	54
55	25
56	28
57	117
58	58
59	59
60	120
61	61
62	62
63	63
64	64
65	65
66	138
67	67
68	136
69	33
70	70
71	71
72	84
73	73
74	74
75	75
76	152
77	77
78	78
79	79
80	160