A132670 - cp's OEIS frontend

A132670 a(1)=1, a(n) = 6*a(n-1) if the minimal positive integer not yet in the sequence is greater than a(n-1), else a(n) = a(n-1) - 1.

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

[1, 6, 5, 4, 3, 2, 12, 11, 10, 9, 8, 7, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49]

cp's OEIS Frontend

A132670 a(1)=1, a(n) = 6*a(n-1) if the minimal positive integer not yet in the sequence is greater than a(n-1), else a(n) = a(n-1) - 1.

Table of values

List of values

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

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

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