A342047 - cp's OEIS frontend

A342047 When a digit d is prime, the next digit is < d.

n	a(n)
1	0
2	1
3	2
4	10
5	3
6	11
7	4
8	5
9	12
10	13
11	14
12	6
13	7
14	15
15	16
16	8
17	9
18	17
19	18
20	19
21	20
22	21
23	30
24	31
25	32
26	100
27	40
28	41
29	42
30	101
31	43
32	102
33	103
34	104
35	44
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	105
45	106
46	53
47	107
48	54
49	60
50	61
51	62
52	108
53	63
54	109
55	64
56	65
57	110
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	111
66	73
67	112
68	113
69	114
70	74
71	75
72	115
73	116

[0, 1, 2, 10, 3, 11, 4, 5, 12, 13, 14, 6, 7, 15, 16, 8, 9, 17, 18, 19, 20, 21, 30, 31, 32, 100, 40, 41, 42, 101, 43, 102, 103, 104, 44, 45, 46, 47, 48, 49, 50, 51, 52, 105, 106, 53, 107, 54, 60, 61, 62, 108, 63, 109, 64, 65, 110, 66, 67, 68, 69, 70, 71, 72, 111, 73, 112, 113, 114, 74, 75, 115, 116]

cp's OEIS Frontend

A342047 When a digit d is prime, the next digit is < d.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	10
5	3
6	11
7	4
8	5
9	12
10	13
11	14
12	6
13	7
14	15
15	16
16	8
17	9
18	17
19	18
20	19
21	20
22	21
23	30
24	31
25	32
26	100
27	40
28	41
29	42
30	101
31	43
32	102
33	103
34	104
35	44
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	105
45	106
46	53
47	107
48	54
49	60
50	61
51	62
52	108
53	63
54	109
55	64
56	65
57	110
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	111
66	73
67	112
68	113
69	114
70	74
71	75
72	115
73	116

n	a(n)
1	0
2	1
3	2
4	10
5	3
6	11
7	4
8	5
9	12
10	13
11	14
12	6
13	7
14	15
15	16
16	8
17	9
18	17
19	18
20	19
21	20
22	21
23	30
24	31
25	32
26	100
27	40
28	41
29	42
30	101
31	43
32	102
33	103
34	104
35	44
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	105
45	106
46	53
47	107
48	54
49	60
50	61
51	62
52	108
53	63
54	109
55	64
56	65
57	110
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	111
66	73
67	112
68	113
69	114
70	74
71	75
72	115
73	116

n	a(n)
1	0
2	1
3	2
4	10
5	3
6	11
7	4
8	5
9	12
10	13
11	14
12	6
13	7
14	15
15	16
16	8
17	9
18	17
19	18
20	19
21	20
22	21
23	30
24	31
25	32
26	100
27	40
28	41
29	42
30	101
31	43
32	102
33	103
34	104
35	44
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	105
45	106
46	53
47	107
48	54
49	60
50	61
51	62
52	108
53	63
54	109
55	64
56	65
57	110
58	66
59	67
60	68
61	69
62	70
63	71
64	72
65	111
66	73
67	112
68	113
69	114
70	74
71	75
72	115
73	116