A132672 - cp's OEIS frontend

A132672 a(1)=1, a(n) = 8*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	8
3	7
4	6
5	5
6	4
7	3
8	2
9	16
10	15
11	14
12	13
13	12
14	11
15	10
16	9
17	72
18	71
19	70
20	69
21	68
22	67
23	66
24	65
25	64
26	63
27	62
28	61
29	60
30	59
31	58
32	57
33	56
34	55
35	54
36	53
37	52
38	51
39	50
40	49
41	48
42	47
43	46
44	45
45	44
46	43
47	42
48	41
49	40
50	39
51	38
52	37
53	36
54	35
55	34
56	33
57	32
58	31
59	30
60	29
61	28
62	27
63	26
64	25
65	24
66	23
67	22
68	21
69	20
70	19
71	18
72	17

[1, 8, 7, 6, 5, 4, 3, 2, 16, 15, 14, 13, 12, 11, 10, 9, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 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]

cp's OEIS Frontend

A132672 a(1)=1, a(n) = 8*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	8
3	7
4	6
5	5
6	4
7	3
8	2
9	16
10	15
11	14
12	13
13	12
14	11
15	10
16	9
17	72
18	71
19	70
20	69
21	68
22	67
23	66
24	65
25	64
26	63
27	62
28	61
29	60
30	59
31	58
32	57
33	56
34	55
35	54
36	53
37	52
38	51
39	50
40	49
41	48
42	47
43	46
44	45
45	44
46	43
47	42
48	41
49	40
50	39
51	38
52	37
53	36
54	35
55	34
56	33
57	32
58	31
59	30
60	29
61	28
62	27
63	26
64	25
65	24
66	23
67	22
68	21
69	20
70	19
71	18
72	17

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

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