A342079 - cp's OEIS frontend

A342079 Even digits only come in successive pairs (separated or not by a comma).

n	a(n)
1	1
2	2
3	21
4	3
5	4
6	41
7	5
8	6
9	61
10	7
11	8
12	81
13	9
14	11
15	12
16	22
17	23
18	13
19	14
20	42
21	24
22	43
23	15
24	16
25	62
26	25
27	17
28	18
29	82
30	26
31	63
32	19
33	31
34	32
35	27
36	33
37	34
38	44
39	45
40	35
41	36
42	64
43	46
44	65
45	37
46	38
47	83
48	39
49	51
50	52
51	28
52	84
53	47
54	53
55	54
56	48
57	85
58	55
59	56
60	66
61	67
62	57
63	58
64	86
65	68
66	87
67	59
68	71
69	72
70	29
71	73
72	74
73	49
74	75
75	76
76	69
77	77
78	78
79	88
80	89

[1, 2, 21, 3, 4, 41, 5, 6, 61, 7, 8, 81, 9, 11, 12, 22, 23, 13, 14, 42, 24, 43, 15, 16, 62, 25, 17, 18, 82, 26, 63, 19, 31, 32, 27, 33, 34, 44, 45, 35, 36, 64, 46, 65, 37, 38, 83, 39, 51, 52, 28, 84, 47, 53, 54, 48, 85, 55, 56, 66, 67, 57, 58, 86, 68, 87, 59, 71, 72, 29, 73, 74, 49, 75, 76, 69, 77, 78, 88, 89]

cp's OEIS Frontend

A342079 Even digits only come in successive pairs (separated or not by a comma).

Table of values

List of values

n	a(n)
1	1
2	2
3	21
4	3
5	4
6	41
7	5
8	6
9	61
10	7
11	8
12	81
13	9
14	11
15	12
16	22
17	23
18	13
19	14
20	42
21	24
22	43
23	15
24	16
25	62
26	25
27	17
28	18
29	82
30	26
31	63
32	19
33	31
34	32
35	27
36	33
37	34
38	44
39	45
40	35
41	36
42	64
43	46
44	65
45	37
46	38
47	83
48	39
49	51
50	52
51	28
52	84
53	47
54	53
55	54
56	48
57	85
58	55
59	56
60	66
61	67
62	57
63	58
64	86
65	68
66	87
67	59
68	71
69	72
70	29
71	73
72	74
73	49
74	75
75	76
76	69
77	77
78	78
79	88
80	89

n	a(n)
1	1
2	2
3	21
4	3
5	4
6	41
7	5
8	6
9	61
10	7
11	8
12	81
13	9
14	11
15	12
16	22
17	23
18	13
19	14
20	42
21	24
22	43
23	15
24	16
25	62
26	25
27	17
28	18
29	82
30	26
31	63
32	19
33	31
34	32
35	27
36	33
37	34
38	44
39	45
40	35
41	36
42	64
43	46
44	65
45	37
46	38
47	83
48	39
49	51
50	52
51	28
52	84
53	47
54	53
55	54
56	48
57	85
58	55
59	56
60	66
61	67
62	57
63	58
64	86
65	68
66	87
67	59
68	71
69	72
70	29
71	73
72	74
73	49
74	75
75	76
76	69
77	77
78	78
79	88
80	89

n	a(n)
1	1
2	2
3	21
4	3
5	4
6	41
7	5
8	6
9	61
10	7
11	8
12	81
13	9
14	11
15	12
16	22
17	23
18	13
19	14
20	42
21	24
22	43
23	15
24	16
25	62
26	25
27	17
28	18
29	82
30	26
31	63
32	19
33	31
34	32
35	27
36	33
37	34
38	44
39	45
40	35
41	36
42	64
43	46
44	65
45	37
46	38
47	83
48	39
49	51
50	52
51	28
52	84
53	47
54	53
55	54
56	48
57	85
58	55
59	56
60	66
61	67
62	57
63	58
64	86
65	68
66	87
67	59
68	71
69	72
70	29
71	73
72	74
73	49
74	75
75	76
76	69
77	77
78	78
79	88
80	89