A014489 - cp's OEIS frontend

A014489 Positions of involutions (permutations whose square is the identity) in reverse colexicographic order (A055089/A195663).

n	a(n)
0	0
1	1
2	2
3	5
4	6
5	7
6	14
7	16
8	21
9	23
10	24
11	25
12	26
13	29
14	54
15	55
16	60
17	67
18	80
19	82
20	86
21	94
22	105
23	107
24	111
25	119
26	120
27	121
28	122
29	125
30	126
31	127
32	134
33	136
34	141
35	143
36	264
37	265
38	266
39	269
40	288
41	289
42	314
43	316
44	339
45	341
46	390
47	391
48	396
49	403
50	414
51	415
52	444
53	450
54	469

[0, 1, 2, 5, 6, 7, 14, 16, 21, 23, 24, 25, 26, 29, 54, 55, 60, 67, 80, 82, 86, 94, 105, 107, 111, 119, 120, 121, 122, 125, 126, 127, 134, 136, 141, 143, 264, 265, 266, 269, 288, 289, 314, 316, 339, 341, 390, 391, 396, 403, 414, 415, 444, 450, 469]

cp's OEIS Frontend

A014489 Positions of involutions (permutations whose square is the identity) in reverse colexicographic order (A055089/A195663).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	5
4	6
5	7
6	14
7	16
8	21
9	23
10	24
11	25
12	26
13	29
14	54
15	55
16	60
17	67
18	80
19	82
20	86
21	94
22	105
23	107
24	111
25	119
26	120
27	121
28	122
29	125
30	126
31	127
32	134
33	136
34	141
35	143
36	264
37	265
38	266
39	269
40	288
41	289
42	314
43	316
44	339
45	341
46	390
47	391
48	396
49	403
50	414
51	415
52	444
53	450
54	469

n	a(n)
0	0
1	1
2	2
3	5
4	6
5	7
6	14
7	16
8	21
9	23
10	24
11	25
12	26
13	29
14	54
15	55
16	60
17	67
18	80
19	82
20	86
21	94
22	105
23	107
24	111
25	119
26	120
27	121
28	122
29	125
30	126
31	127
32	134
33	136
34	141
35	143
36	264
37	265
38	266
39	269
40	288
41	289
42	314
43	316
44	339
45	341
46	390
47	391
48	396
49	403
50	414
51	415
52	444
53	450
54	469

n	a(n)
0	0
1	1
2	2
3	5
4	6
5	7
6	14
7	16
8	21
9	23
10	24
11	25
12	26
13	29
14	54
15	55
16	60
17	67
18	80
19	82
20	86
21	94
22	105
23	107
24	111
25	119
26	120
27	121
28	122
29	125
30	126
31	127
32	134
33	136
34	141
35	143
36	264
37	265
38	266
39	269
40	288
41	289
42	314
43	316
44	339
45	341
46	390
47	391
48	396
49	403
50	414
51	415
52	444
53	450
54	469