A330384 - cp's OEIS frontend

A330384 Single-digit numbers in order of appearance in decimal expansions of composite numbers, followed by two-digit numbers in order of appearance, then three-digit numbers and so forth.

n	a(n)
1	4
2	6
3	8
4	9
5	1
6	0
7	2
8	5
9	7
10	3
11	10
12	12
13	14
14	15
15	16
16	18
17	20
18	21
19	22
20	24
21	25
22	26
23	27
24	28
25	30
26	32
27	33
28	34
29	35
30	36
31	38
32	39
33	40
34	42
35	44
36	45
37	46
38	48
39	49
40	50
41	51
42	52
43	54
44	55
45	56
46	57
47	58
48	60
49	62
50	63
51	64
52	65
53	66
54	68
55	69
56	70
57	72
58	74
59	75
60	76
61	77
62	78
63	80
64	81
65	82
66	84
67	85
68	86

[4, 6, 8, 9, 1, 0, 2, 5, 7, 3, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86]

cp's OEIS Frontend

A330384 Single-digit numbers in order of appearance in decimal expansions of composite numbers, followed by two-digit numbers in order of appearance, then three-digit numbers and so forth.

Table of values

List of values

n	a(n)
1	4
2	6
3	8
4	9
5	1
6	0
7	2
8	5
9	7
10	3
11	10
12	12
13	14
14	15
15	16
16	18
17	20
18	21
19	22
20	24
21	25
22	26
23	27
24	28
25	30
26	32
27	33
28	34
29	35
30	36
31	38
32	39
33	40
34	42
35	44
36	45
37	46
38	48
39	49
40	50
41	51
42	52
43	54
44	55
45	56
46	57
47	58
48	60
49	62
50	63
51	64
52	65
53	66
54	68
55	69
56	70
57	72
58	74
59	75
60	76
61	77
62	78
63	80
64	81
65	82
66	84
67	85
68	86

n	a(n)
1	4
2	6
3	8
4	9
5	1
6	0
7	2
8	5
9	7
10	3
11	10
12	12
13	14
14	15
15	16
16	18
17	20
18	21
19	22
20	24
21	25
22	26
23	27
24	28
25	30
26	32
27	33
28	34
29	35
30	36
31	38
32	39
33	40
34	42
35	44
36	45
37	46
38	48
39	49
40	50
41	51
42	52
43	54
44	55
45	56
46	57
47	58
48	60
49	62
50	63
51	64
52	65
53	66
54	68
55	69
56	70
57	72
58	74
59	75
60	76
61	77
62	78
63	80
64	81
65	82
66	84
67	85
68	86

n	a(n)
1	4
2	6
3	8
4	9
5	1
6	0
7	2
8	5
9	7
10	3
11	10
12	12
13	14
14	15
15	16
16	18
17	20
18	21
19	22
20	24
21	25
22	26
23	27
24	28
25	30
26	32
27	33
28	34
29	35
30	36
31	38
32	39
33	40
34	42
35	44
36	45
37	46
38	48
39	49
40	50
41	51
42	52
43	54
44	55
45	56
46	57
47	58
48	60
49	62
50	63
51	64
52	65
53	66
54	68
55	69
56	70
57	72
58	74
59	75
60	76
61	77
62	78
63	80
64	81
65	82
66	84
67	85
68	86