A217555 - cp's OEIS frontend

A217555 Terms as well as digits are of alternating parity; this is the lexicographically earliest injective sequence with this property.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	210
11	101
12	212
13	103
14	214
15	105
16	216
17	107
18	218
19	109
20	230
21	121
22	232
23	123
24	234
25	125
26	236
27	127
28	238
29	129
30	250
31	141
32	252
33	143
34	254
35	145
36	256
37	147
38	258
39	149
40	270
41	161
42	272
43	163
44	274
45	165
46	276
47	167
48	278
49	169
50	290
51	181
52	292
53	183

[1, 2, 3, 4, 5, 6, 7, 8, 9, 210, 101, 212, 103, 214, 105, 216, 107, 218, 109, 230, 121, 232, 123, 234, 125, 236, 127, 238, 129, 250, 141, 252, 143, 254, 145, 256, 147, 258, 149, 270, 161, 272, 163, 274, 165, 276, 167, 278, 169, 290, 181, 292, 183]

cp's OEIS Frontend

A217555 Terms as well as digits are of alternating parity; this is the lexicographically earliest injective sequence with this property.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	210
11	101
12	212
13	103
14	214
15	105
16	216
17	107
18	218
19	109
20	230
21	121
22	232
23	123
24	234
25	125
26	236
27	127
28	238
29	129
30	250
31	141
32	252
33	143
34	254
35	145
36	256
37	147
38	258
39	149
40	270
41	161
42	272
43	163
44	274
45	165
46	276
47	167
48	278
49	169
50	290
51	181
52	292
53	183

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	210
11	101
12	212
13	103
14	214
15	105
16	216
17	107
18	218
19	109
20	230
21	121
22	232
23	123
24	234
25	125
26	236
27	127
28	238
29	129
30	250
31	141
32	252
33	143
34	254
35	145
36	256
37	147
38	258
39	149
40	270
41	161
42	272
43	163
44	274
45	165
46	276
47	167
48	278
49	169
50	290
51	181
52	292
53	183

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	210
11	101
12	212
13	103
14	214
15	105
16	216
17	107
18	218
19	109
20	230
21	121
22	232
23	123
24	234
25	125
26	236
27	127
28	238
29	129
30	250
31	141
32	252
33	143
34	254
35	145
36	256
37	147
38	258
39	149
40	270
41	161
42	272
43	163
44	274
45	165
46	276
47	167
48	278
49	169
50	290
51	181
52	292
53	183