A048991 - cp's OEIS frontend

A048991 Write down the numbers 1,2,3,... but omit any number (such as 12 or 23 or 31 ...) which appears in the concatenation of all earlier terms.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	24
23	25
24	26
25	27
26	28
27	29
28	30
29	32
30	33
31	35
32	36
33	37
34	38
35	39
36	40
37	43
38	44
39	46
40	47
41	48
42	49
43	50
44	54
45	55
46	57
47	58
48	59
49	60
50	65
51	66
52	68
53	69
54	70
55	76
56	77
57	79
58	80
59	87
60	88
61	90
62	99
63	100
64	102
65	103
66	104
67	105
68	106
69	107
70	108
71	109
72	110
73	112

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 32, 33, 35, 36, 37, 38, 39, 40, 43, 44, 46, 47, 48, 49, 50, 54, 55, 57, 58, 59, 60, 65, 66, 68, 69, 70, 76, 77, 79, 80, 87, 88, 90, 99, 100, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112]

cp's OEIS Frontend

A048991 Write down the numbers 1,2,3,... but omit any number (such as 12 or 23 or 31 ...) which appears in the concatenation of all earlier terms.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	24
23	25
24	26
25	27
26	28
27	29
28	30
29	32
30	33
31	35
32	36
33	37
34	38
35	39
36	40
37	43
38	44
39	46
40	47
41	48
42	49
43	50
44	54
45	55
46	57
47	58
48	59
49	60
50	65
51	66
52	68
53	69
54	70
55	76
56	77
57	79
58	80
59	87
60	88
61	90
62	99
63	100
64	102
65	103
66	104
67	105
68	106
69	107
70	108
71	109
72	110
73	112

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	24
23	25
24	26
25	27
26	28
27	29
28	30
29	32
30	33
31	35
32	36
33	37
34	38
35	39
36	40
37	43
38	44
39	46
40	47
41	48
42	49
43	50
44	54
45	55
46	57
47	58
48	59
49	60
50	65
51	66
52	68
53	69
54	70
55	76
56	77
57	79
58	80
59	87
60	88
61	90
62	99
63	100
64	102
65	103
66	104
67	105
68	106
69	107
70	108
71	109
72	110
73	112

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	24
23	25
24	26
25	27
26	28
27	29
28	30
29	32
30	33
31	35
32	36
33	37
34	38
35	39
36	40
37	43
38	44
39	46
40	47
41	48
42	49
43	50
44	54
45	55
46	57
47	58
48	59
49	60
50	65
51	66
52	68
53	69
54	70
55	76
56	77
57	79
58	80
59	87
60	88
61	90
62	99
63	100
64	102
65	103
66	104
67	105
68	106
69	107
70	108
71	109
72	110
73	112