A141825 - cp's OEIS frontend

A141825 Encodes permutations which "avoid" the subsequence "123" based on the mapping described in A051683.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	16
14	18
15	24
16	25
17	26
18	27
19	28
20	30
21	31
22	32
23	33
24	34
25	36
26	37
27	40
28	42
29	48
30	49
31	50
32	51
33	52
34	60
35	61
36	64
37	66
38	72
39	73
40	76
41	90
42	96

[0, 1, 2, 3, 4, 6, 7, 8, 9, 10, 12, 13, 16, 18, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 36, 37, 40, 42, 48, 49, 50, 51, 52, 60, 61, 64, 66, 72, 73, 76, 90, 96]

cp's OEIS Frontend

A141825 Encodes permutations which "avoid" the subsequence "123" based on the mapping described in A051683.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	16
14	18
15	24
16	25
17	26
18	27
19	28
20	30
21	31
22	32
23	33
24	34
25	36
26	37
27	40
28	42
29	48
30	49
31	50
32	51
33	52
34	60
35	61
36	64
37	66
38	72
39	73
40	76
41	90
42	96

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	16
14	18
15	24
16	25
17	26
18	27
19	28
20	30
21	31
22	32
23	33
24	34
25	36
26	37
27	40
28	42
29	48
30	49
31	50
32	51
33	52
34	60
35	61
36	64
37	66
38	72
39	73
40	76
41	90
42	96

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	13
13	16
14	18
15	24
16	25
17	26
18	27
19	28
20	30
21	31
22	32
23	33
24	34
25	36
26	37
27	40
28	42
29	48
30	49
31	50
32	51
33	52
34	60
35	61
36	64
37	66
38	72
39	73
40	76
41	90
42	96