A336621 - cp's OEIS frontend

A336621 Lexicographically earliest sequence of distinct positive terms starting with a(1) = 2 such that the product of the last two digits of the sequence (when extended with a new term) is not in the sequence.

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	10
9	11
10	16
11	23
12	26
13	27
14	29
15	30
16	32
17	34
18	36
19	37
20	38
21	40
22	43
23	45
24	46
25	47
26	50
27	53
28	54
29	55
30	57
31	60
32	61
33	62
34	63
35	64
36	67
37	68
38	70
39	73
40	74
41	75
42	76
43	77
44	78
45	80
46	83
47	86
48	87
49	89
50	90
51	92
52	98
53	99
54	100
55	101
56	102
57	103
58	104
59	105
60	106
61	107
62	108
63	109
64	110
65	111
66	116
67	120
68	123
69	126
70	127
71	129
72	130
73	132

[2, 3, 4, 5, 7, 8, 9, 10, 11, 16, 23, 26, 27, 29, 30, 32, 34, 36, 37, 38, 40, 43, 45, 46, 47, 50, 53, 54, 55, 57, 60, 61, 62, 63, 64, 67, 68, 70, 73, 74, 75, 76, 77, 78, 80, 83, 86, 87, 89, 90, 92, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 116, 120, 123, 126, 127, 129, 130, 132]

cp's OEIS Frontend

A336621 Lexicographically earliest sequence of distinct positive terms starting with a(1) = 2 such that the product of the last two digits of the sequence (when extended with a new term) is not in the sequence.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	10
9	11
10	16
11	23
12	26
13	27
14	29
15	30
16	32
17	34
18	36
19	37
20	38
21	40
22	43
23	45
24	46
25	47
26	50
27	53
28	54
29	55
30	57
31	60
32	61
33	62
34	63
35	64
36	67
37	68
38	70
39	73
40	74
41	75
42	76
43	77
44	78
45	80
46	83
47	86
48	87
49	89
50	90
51	92
52	98
53	99
54	100
55	101
56	102
57	103
58	104
59	105
60	106
61	107
62	108
63	109
64	110
65	111
66	116
67	120
68	123
69	126
70	127
71	129
72	130
73	132

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	10
9	11
10	16
11	23
12	26
13	27
14	29
15	30
16	32
17	34
18	36
19	37
20	38
21	40
22	43
23	45
24	46
25	47
26	50
27	53
28	54
29	55
30	57
31	60
32	61
33	62
34	63
35	64
36	67
37	68
38	70
39	73
40	74
41	75
42	76
43	77
44	78
45	80
46	83
47	86
48	87
49	89
50	90
51	92
52	98
53	99
54	100
55	101
56	102
57	103
58	104
59	105
60	106
61	107
62	108
63	109
64	110
65	111
66	116
67	120
68	123
69	126
70	127
71	129
72	130
73	132

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	8
7	9
8	10
9	11
10	16
11	23
12	26
13	27
14	29
15	30
16	32
17	34
18	36
19	37
20	38
21	40
22	43
23	45
24	46
25	47
26	50
27	53
28	54
29	55
30	57
31	60
32	61
33	62
34	63
35	64
36	67
37	68
38	70
39	73
40	74
41	75
42	76
43	77
44	78
45	80
46	83
47	86
48	87
49	89
50	90
51	92
52	98
53	99
54	100
55	101
56	102
57	103
58	104
59	105
60	106
61	107
62	108
63	109
64	110
65	111
66	116
67	120
68	123
69	126
70	127
71	129
72	130
73	132