A370921 - cp's OEIS frontend

A370921 Positive integers in whose ternary representation, 2 occurs at least once, and every 2 is followed by 1.

n	a(n)
1	7
2	16
3	21
4	22
5	34
6	43
7	48
8	49
9	63
10	64
11	66
12	67
13	70
14	88
15	97
16	102
17	103
18	115
19	124
20	129
21	130
22	144
23	145
24	147
25	148
26	151
27	189
28	190
29	192
30	193
31	196
32	198
33	199
34	201
35	202
36	205
37	210
38	211
39	250
40	259
41	264
42	265
43	277
44	286
45	291
46	292
47	306
48	307
49	309
50	310
51	313
52	331
53	340
54	345
55	346

[7, 16, 21, 22, 34, 43, 48, 49, 63, 64, 66, 67, 70, 88, 97, 102, 103, 115, 124, 129, 130, 144, 145, 147, 148, 151, 189, 190, 192, 193, 196, 198, 199, 201, 202, 205, 210, 211, 250, 259, 264, 265, 277, 286, 291, 292, 306, 307, 309, 310, 313, 331, 340, 345, 346]

cp's OEIS Frontend

A370921 Positive integers in whose ternary representation, 2 occurs at least once, and every 2 is followed by 1.

Table of values

List of values

n	a(n)
1	7
2	16
3	21
4	22
5	34
6	43
7	48
8	49
9	63
10	64
11	66
12	67
13	70
14	88
15	97
16	102
17	103
18	115
19	124
20	129
21	130
22	144
23	145
24	147
25	148
26	151
27	189
28	190
29	192
30	193
31	196
32	198
33	199
34	201
35	202
36	205
37	210
38	211
39	250
40	259
41	264
42	265
43	277
44	286
45	291
46	292
47	306
48	307
49	309
50	310
51	313
52	331
53	340
54	345
55	346

n	a(n)
1	7
2	16
3	21
4	22
5	34
6	43
7	48
8	49
9	63
10	64
11	66
12	67
13	70
14	88
15	97
16	102
17	103
18	115
19	124
20	129
21	130
22	144
23	145
24	147
25	148
26	151
27	189
28	190
29	192
30	193
31	196
32	198
33	199
34	201
35	202
36	205
37	210
38	211
39	250
40	259
41	264
42	265
43	277
44	286
45	291
46	292
47	306
48	307
49	309
50	310
51	313
52	331
53	340
54	345
55	346

n	a(n)
1	7
2	16
3	21
4	22
5	34
6	43
7	48
8	49
9	63
10	64
11	66
12	67
13	70
14	88
15	97
16	102
17	103
18	115
19	124
20	129
21	130
22	144
23	145
24	147
25	148
26	151
27	189
28	190
29	192
30	193
31	196
32	198
33	199
34	201
35	202
36	205
37	210
38	211
39	250
40	259
41	264
42	265
43	277
44	286
45	291
46	292
47	306
48	307
49	309
50	310
51	313
52	331
53	340
54	345
55	346