A333775 - cp's OEIS frontend

A333775 a(0) = 0; for n > 0, a(n) is the smallest positive integer not yet appearing in the sequence such that a(n-1) * a(n) contains as a substring either a(n-1) or a(n).

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	10
6	3
7	5
8	7
9	11
10	8
11	16
12	20
13	21
14	9
15	22
16	51
17	12
18	26
19	24
20	52
21	76
22	28
23	46
24	40
25	31
26	30
27	41
28	15
29	50
30	13
31	25
32	17
33	69
34	34
35	42
36	94
37	100
38	14
39	82
40	71
41	60
42	36
43	38
44	89
45	55
46	61
47	35
48	80
49	56
50	87
51	33
52	75
53	29
54	53
55	101
56	18
57	66
58	151
59	32
60	91
61	43
62	102
63	19
64	63
65	137
66	83
67	96
68	126
69	44
70	59
71	27
72	103

[0, 1, 2, 6, 4, 10, 3, 5, 7, 11, 8, 16, 20, 21, 9, 22, 51, 12, 26, 24, 52, 76, 28, 46, 40, 31, 30, 41, 15, 50, 13, 25, 17, 69, 34, 42, 94, 100, 14, 82, 71, 60, 36, 38, 89, 55, 61, 35, 80, 56, 87, 33, 75, 29, 53, 101, 18, 66, 151, 32, 91, 43, 102, 19, 63, 137, 83, 96, 126, 44, 59, 27, 103]

cp's OEIS Frontend

A333775 a(0) = 0; for n > 0, a(n) is the smallest positive integer not yet appearing in the sequence such that a(n-1) * a(n) contains as a substring either a(n-1) or a(n).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	10
6	3
7	5
8	7
9	11
10	8
11	16
12	20
13	21
14	9
15	22
16	51
17	12
18	26
19	24
20	52
21	76
22	28
23	46
24	40
25	31
26	30
27	41
28	15
29	50
30	13
31	25
32	17
33	69
34	34
35	42
36	94
37	100
38	14
39	82
40	71
41	60
42	36
43	38
44	89
45	55
46	61
47	35
48	80
49	56
50	87
51	33
52	75
53	29
54	53
55	101
56	18
57	66
58	151
59	32
60	91
61	43
62	102
63	19
64	63
65	137
66	83
67	96
68	126
69	44
70	59
71	27
72	103

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	10
6	3
7	5
8	7
9	11
10	8
11	16
12	20
13	21
14	9
15	22
16	51
17	12
18	26
19	24
20	52
21	76
22	28
23	46
24	40
25	31
26	30
27	41
28	15
29	50
30	13
31	25
32	17
33	69
34	34
35	42
36	94
37	100
38	14
39	82
40	71
41	60
42	36
43	38
44	89
45	55
46	61
47	35
48	80
49	56
50	87
51	33
52	75
53	29
54	53
55	101
56	18
57	66
58	151
59	32
60	91
61	43
62	102
63	19
64	63
65	137
66	83
67	96
68	126
69	44
70	59
71	27
72	103

n	a(n)
0	0
1	1
2	2
3	6
4	4
5	10
6	3
7	5
8	7
9	11
10	8
11	16
12	20
13	21
14	9
15	22
16	51
17	12
18	26
19	24
20	52
21	76
22	28
23	46
24	40
25	31
26	30
27	41
28	15
29	50
30	13
31	25
32	17
33	69
34	34
35	42
36	94
37	100
38	14
39	82
40	71
41	60
42	36
43	38
44	89
45	55
46	61
47	35
48	80
49	56
50	87
51	33
52	75
53	29
54	53
55	101
56	18
57	66
58	151
59	32
60	91
61	43
62	102
63	19
64	63
65	137
66	83
67	96
68	126
69	44
70	59
71	27
72	103