A308728 - cp's OEIS frontend

A308728 Lexicographically earliest sequence of distinct terms such that the digits of two contiguous terms sum up to a prime.

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	8
9	9
10	11
11	10
12	13
13	12
14	17
15	14
16	15
17	16
18	19
19	18
20	20
21	21
22	22
23	25
24	24
25	23
26	26
27	27
28	28
29	30
30	31
31	34
32	33
33	29
34	35
35	32
36	39
37	38
38	42
39	41
40	44
41	36
42	37
43	43
44	40
45	45
46	46
47	49
48	51
49	47
50	48
51	50
52	53
53	54
54	55
55	52
56	57
57	56
58	60
59	58
60	64
61	61
62	66
63	65
64	62
65	63
66	59
67	69
68	68
69	72
70	71
71	74
72	75
73	70
74	73
75	67
76	79
77	76
78	82
79	81
80	77
81	78
82	80
83	83

[1, 2, 3, 4, 7, 6, 5, 8, 9, 11, 10, 13, 12, 17, 14, 15, 16, 19, 18, 20, 21, 22, 25, 24, 23, 26, 27, 28, 30, 31, 34, 33, 29, 35, 32, 39, 38, 42, 41, 44, 36, 37, 43, 40, 45, 46, 49, 51, 47, 48, 50, 53, 54, 55, 52, 57, 56, 60, 58, 64, 61, 66, 65, 62, 63, 59, 69, 68, 72, 71, 74, 75, 70, 73, 67, 79, 76, 82, 81, 77, 78, 80, 83]

cp's OEIS Frontend

A308728 Lexicographically earliest sequence of distinct terms such that the digits of two contiguous terms sum up to a prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	8
9	9
10	11
11	10
12	13
13	12
14	17
15	14
16	15
17	16
18	19
19	18
20	20
21	21
22	22
23	25
24	24
25	23
26	26
27	27
28	28
29	30
30	31
31	34
32	33
33	29
34	35
35	32
36	39
37	38
38	42
39	41
40	44
41	36
42	37
43	43
44	40
45	45
46	46
47	49
48	51
49	47
50	48
51	50
52	53
53	54
54	55
55	52
56	57
57	56
58	60
59	58
60	64
61	61
62	66
63	65
64	62
65	63
66	59
67	69
68	68
69	72
70	71
71	74
72	75
73	70
74	73
75	67
76	79
77	76
78	82
79	81
80	77
81	78
82	80
83	83

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	8
9	9
10	11
11	10
12	13
13	12
14	17
15	14
16	15
17	16
18	19
19	18
20	20
21	21
22	22
23	25
24	24
25	23
26	26
27	27
28	28
29	30
30	31
31	34
32	33
33	29
34	35
35	32
36	39
37	38
38	42
39	41
40	44
41	36
42	37
43	43
44	40
45	45
46	46
47	49
48	51
49	47
50	48
51	50
52	53
53	54
54	55
55	52
56	57
57	56
58	60
59	58
60	64
61	61
62	66
63	65
64	62
65	63
66	59
67	69
68	68
69	72
70	71
71	74
72	75
73	70
74	73
75	67
76	79
77	76
78	82
79	81
80	77
81	78
82	80
83	83

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	8
9	9
10	11
11	10
12	13
13	12
14	17
15	14
16	15
17	16
18	19
19	18
20	20
21	21
22	22
23	25
24	24
25	23
26	26
27	27
28	28
29	30
30	31
31	34
32	33
33	29
34	35
35	32
36	39
37	38
38	42
39	41
40	44
41	36
42	37
43	43
44	40
45	45
46	46
47	49
48	51
49	47
50	48
51	50
52	53
53	54
54	55
55	52
56	57
57	56
58	60
59	58
60	64
61	61
62	66
63	65
64	62
65	63
66	59
67	69
68	68
69	72
70	71
71	74
72	75
73	70
74	73
75	67
76	79
77	76
78	82
79	81
80	77
81	78
82	80
83	83