A261306 - cp's OEIS frontend

A261306 a(n+1) = abs((n) - gcd(a(n), 6*n+5)), a(1) = 1.

n	a(n)
1	1
2	0
3	17
4	16
5	15
6	10
7	9
8	8
9	7
10	6
11	5
12	4
13	3
14	2
15	1
16	0
17	101
18	100
19	99
20	98
21	97
22	96
23	95
24	94
25	93
26	62
27	61
28	60
29	59
30	58
31	57
32	56
33	55
34	54
35	53
36	52
37	39
38	38
39	37
40	36
41	35
42	34
43	33
44	32
45	31
46	30
47	29
48	28
49	27
50	26
51	25
52	24
53	23
54	22
55	21
56	20
57	19
58	18
59	17
60	16
61	15
62	14
63	13
64	12
65	11
66	10
67	9
68	8
69	7
70	6
71	5
72	4
73	3
74	2
75	1
76	0
77	461
78	460
79	459
80	458
81	457
82	456

[1, 0, 17, 16, 15, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 101, 100, 99, 98, 97, 96, 95, 94, 93, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 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, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 461, 460, 459, 458, 457, 456]

cp's OEIS Frontend

A261306 a(n+1) = abs((n) - gcd(a(n), 6*n+5)), a(1) = 1.

Table of values

List of values

n	a(n)
1	1
2	0
3	17
4	16
5	15
6	10
7	9
8	8
9	7
10	6
11	5
12	4
13	3
14	2
15	1
16	0
17	101
18	100
19	99
20	98
21	97
22	96
23	95
24	94
25	93
26	62
27	61
28	60
29	59
30	58
31	57
32	56
33	55
34	54
35	53
36	52
37	39
38	38
39	37
40	36
41	35
42	34
43	33
44	32
45	31
46	30
47	29
48	28
49	27
50	26
51	25
52	24
53	23
54	22
55	21
56	20
57	19
58	18
59	17
60	16
61	15
62	14
63	13
64	12
65	11
66	10
67	9
68	8
69	7
70	6
71	5
72	4
73	3
74	2
75	1
76	0
77	461
78	460
79	459
80	458
81	457
82	456

n	a(n)
1	1
2	0
3	17
4	16
5	15
6	10
7	9
8	8
9	7
10	6
11	5
12	4
13	3
14	2
15	1
16	0
17	101
18	100
19	99
20	98
21	97
22	96
23	95
24	94
25	93
26	62
27	61
28	60
29	59
30	58
31	57
32	56
33	55
34	54
35	53
36	52
37	39
38	38
39	37
40	36
41	35
42	34
43	33
44	32
45	31
46	30
47	29
48	28
49	27
50	26
51	25
52	24
53	23
54	22
55	21
56	20
57	19
58	18
59	17
60	16
61	15
62	14
63	13
64	12
65	11
66	10
67	9
68	8
69	7
70	6
71	5
72	4
73	3
74	2
75	1
76	0
77	461
78	460
79	459
80	458
81	457
82	456

n	a(n)
1	1
2	0
3	17
4	16
5	15
6	10
7	9
8	8
9	7
10	6
11	5
12	4
13	3
14	2
15	1
16	0
17	101
18	100
19	99
20	98
21	97
22	96
23	95
24	94
25	93
26	62
27	61
28	60
29	59
30	58
31	57
32	56
33	55
34	54
35	53
36	52
37	39
38	38
39	37
40	36
41	35
42	34
43	33
44	32
45	31
46	30
47	29
48	28
49	27
50	26
51	25
52	24
53	23
54	22
55	21
56	20
57	19
58	18
59	17
60	16
61	15
62	14
63	13
64	12
65	11
66	10
67	9
68	8
69	7
70	6
71	5
72	4
73	3
74	2
75	1
76	0
77	461
78	460
79	459
80	458
81	457
82	456