A098951 - cp's OEIS frontend

A098951 Smallest available integer fitting the even/odd/even/odd/even... digit pattern (across adjacent numbers).

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	21
12	23
13	25
14	27
15	29
16	41
17	43
18	45
19	47
20	49
21	61
22	63
23	65
24	67
25	69
26	81
27	83
28	85
29	87
30	89
31	210
32	10
33	12
34	14
35	16
36	18
37	30
38	32
39	34
40	36
41	38
42	50
43	52
44	54
45	56
46	58
47	70
48	72
49	74
50	76
51	78
52	90
53	92
54	94
55	96
56	98
57	101
58	212
59	103
60	214
61	105
62	216
63	107
64	218
65	109

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89, 210, 10, 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98, 101, 212, 103, 214, 105, 216, 107, 218, 109]

cp's OEIS Frontend

A098951 Smallest available integer fitting the even/odd/even/odd/even... digit pattern (across adjacent numbers).

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	21
12	23
13	25
14	27
15	29
16	41
17	43
18	45
19	47
20	49
21	61
22	63
23	65
24	67
25	69
26	81
27	83
28	85
29	87
30	89
31	210
32	10
33	12
34	14
35	16
36	18
37	30
38	32
39	34
40	36
41	38
42	50
43	52
44	54
45	56
46	58
47	70
48	72
49	74
50	76
51	78
52	90
53	92
54	94
55	96
56	98
57	101
58	212
59	103
60	214
61	105
62	216
63	107
64	218
65	109

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	21
12	23
13	25
14	27
15	29
16	41
17	43
18	45
19	47
20	49
21	61
22	63
23	65
24	67
25	69
26	81
27	83
28	85
29	87
30	89
31	210
32	10
33	12
34	14
35	16
36	18
37	30
38	32
39	34
40	36
41	38
42	50
43	52
44	54
45	56
46	58
47	70
48	72
49	74
50	76
51	78
52	90
53	92
54	94
55	96
56	98
57	101
58	212
59	103
60	214
61	105
62	216
63	107
64	218
65	109

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	21
12	23
13	25
14	27
15	29
16	41
17	43
18	45
19	47
20	49
21	61
22	63
23	65
24	67
25	69
26	81
27	83
28	85
29	87
30	89
31	210
32	10
33	12
34	14
35	16
36	18
37	30
38	32
39	34
40	36
41	38
42	50
43	52
44	54
45	56
46	58
47	70
48	72
49	74
50	76
51	78
52	90
53	92
54	94
55	96
56	98
57	101
58	212
59	103
60	214
61	105
62	216
63	107
64	218
65	109