A351001 - cp's OEIS frontend

A351001 a(0) = 0, a(1) = 1; for n > 1, a(n) is the smallest positive number which has not appeared which has a common factor with a(n-2) + a(n-1) but does not equal a(n-2) + a(n-1).

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	5
6	3
7	10
8	26
9	8
10	12
11	14
12	13
13	9
14	11
15	15
16	16
17	62
18	18
19	20
20	19
21	21
22	22
23	86
24	24
25	25
26	7
27	28
28	30
29	29
30	118
31	27
32	35
33	31
34	32
35	33
36	39
37	34
38	146
39	36
40	38
41	37
42	40
43	42
44	41
45	166
46	23
47	45
48	17
49	44
50	122
51	46
52	48
53	47
54	50
55	194
56	52
57	51
58	206
59	514
60	54
61	56
62	55
63	57
64	49
65	53
66	58
67	60
68	59
69	63
70	61
71	64

[0, 1, 2, 6, 4, 5, 3, 10, 26, 8, 12, 14, 13, 9, 11, 15, 16, 62, 18, 20, 19, 21, 22, 86, 24, 25, 7, 28, 30, 29, 118, 27, 35, 31, 32, 33, 39, 34, 146, 36, 38, 37, 40, 42, 41, 166, 23, 45, 17, 44, 122, 46, 48, 47, 50, 194, 52, 51, 206, 514, 54, 56, 55, 57, 49, 53, 58, 60, 59, 63, 61, 64]

cp's OEIS Frontend

A351001 a(0) = 0, a(1) = 1; for n > 1, a(n) is the smallest positive number which has not appeared which has a common factor with a(n-2) + a(n-1) but does not equal a(n-2) + a(n-1).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	5
6	3
7	10
8	26
9	8
10	12
11	14
12	13
13	9
14	11
15	15
16	16
17	62
18	18
19	20
20	19
21	21
22	22
23	86
24	24
25	25
26	7
27	28
28	30
29	29
30	118
31	27
32	35
33	31
34	32
35	33
36	39
37	34
38	146
39	36
40	38
41	37
42	40
43	42
44	41
45	166
46	23
47	45
48	17
49	44
50	122
51	46
52	48
53	47
54	50
55	194
56	52
57	51
58	206
59	514
60	54
61	56
62	55
63	57
64	49
65	53
66	58
67	60
68	59
69	63
70	61
71	64

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	5
6	3
7	10
8	26
9	8
10	12
11	14
12	13
13	9
14	11
15	15
16	16
17	62
18	18
19	20
20	19
21	21
22	22
23	86
24	24
25	25
26	7
27	28
28	30
29	29
30	118
31	27
32	35
33	31
34	32
35	33
36	39
37	34
38	146
39	36
40	38
41	37
42	40
43	42
44	41
45	166
46	23
47	45
48	17
49	44
50	122
51	46
52	48
53	47
54	50
55	194
56	52
57	51
58	206
59	514
60	54
61	56
62	55
63	57
64	49
65	53
66	58
67	60
68	59
69	63
70	61
71	64

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	5
6	3
7	10
8	26
9	8
10	12
11	14
12	13
13	9
14	11
15	15
16	16
17	62
18	18
19	20
20	19
21	21
22	22
23	86
24	24
25	25
26	7
27	28
28	30
29	29
30	118
31	27
32	35
33	31
34	32
35	33
36	39
37	34
38	146
39	36
40	38
41	37
42	40
43	42
44	41
45	166
46	23
47	45
48	17
49	44
50	122
51	46
52	48
53	47
54	50
55	194
56	52
57	51
58	206
59	514
60	54
61	56
62	55
63	57
64	49
65	53
66	58
67	60
68	59
69	63
70	61
71	64