A309390 - cp's OEIS frontend

A309390 Set a(1)=10. Thereafter a(n) is the smallest positive number not yet in the sequence that contains exactly one even digit and one odd digit from a(n-1).

n	a(n)
1	10
2	100
3	101
4	102
5	12
6	21
7	112
8	120
9	103
10	30
11	130
12	104
13	14
14	41
15	114
16	124
17	121
18	122
19	123
20	23
21	32
22	132
23	125
24	25
25	52
26	152
27	126
28	16
29	61
30	106
31	105
32	50
33	150
34	107
35	70
36	170
37	108
38	18
39	81
40	118
41	128
42	127
43	27
44	72
45	172
46	129
47	29
48	92
49	192
50	142
51	134
52	34
53	43
54	143
55	140
56	109
57	90
58	190
59	110
60	160
61	116

[10, 100, 101, 102, 12, 21, 112, 120, 103, 30, 130, 104, 14, 41, 114, 124, 121, 122, 123, 23, 32, 132, 125, 25, 52, 152, 126, 16, 61, 106, 105, 50, 150, 107, 70, 170, 108, 18, 81, 118, 128, 127, 27, 72, 172, 129, 29, 92, 192, 142, 134, 34, 43, 143, 140, 109, 90, 190, 110, 160, 116]

cp's OEIS Frontend

A309390 Set a(1)=10. Thereafter a(n) is the smallest positive number not yet in the sequence that contains exactly one even digit and one odd digit from a(n-1).

Table of values

List of values

n	a(n)
1	10
2	100
3	101
4	102
5	12
6	21
7	112
8	120
9	103
10	30
11	130
12	104
13	14
14	41
15	114
16	124
17	121
18	122
19	123
20	23
21	32
22	132
23	125
24	25
25	52
26	152
27	126
28	16
29	61
30	106
31	105
32	50
33	150
34	107
35	70
36	170
37	108
38	18
39	81
40	118
41	128
42	127
43	27
44	72
45	172
46	129
47	29
48	92
49	192
50	142
51	134
52	34
53	43
54	143
55	140
56	109
57	90
58	190
59	110
60	160
61	116

n	a(n)
1	10
2	100
3	101
4	102
5	12
6	21
7	112
8	120
9	103
10	30
11	130
12	104
13	14
14	41
15	114
16	124
17	121
18	122
19	123
20	23
21	32
22	132
23	125
24	25
25	52
26	152
27	126
28	16
29	61
30	106
31	105
32	50
33	150
34	107
35	70
36	170
37	108
38	18
39	81
40	118
41	128
42	127
43	27
44	72
45	172
46	129
47	29
48	92
49	192
50	142
51	134
52	34
53	43
54	143
55	140
56	109
57	90
58	190
59	110
60	160
61	116

n	a(n)
1	10
2	100
3	101
4	102
5	12
6	21
7	112
8	120
9	103
10	30
11	130
12	104
13	14
14	41
15	114
16	124
17	121
18	122
19	123
20	23
21	32
22	132
23	125
24	25
25	52
26	152
27	126
28	16
29	61
30	106
31	105
32	50
33	150
34	107
35	70
36	170
37	108
38	18
39	81
40	118
41	128
42	127
43	27
44	72
45	172
46	129
47	29
48	92
49	192
50	142
51	134
52	34
53	43
54	143
55	140
56	109
57	90
58	190
59	110
60	160
61	116