A258083 - cp's OEIS frontend

A258083 Smallest multiple of 3 not appearing earlier that ends with n.

n	a(n)
1	21
2	12
3	3
4	24
5	15
6	6
7	27
8	18
9	9
10	210
11	111
12	312
13	213
14	114
15	315
16	216
17	117
18	318
19	219
20	120
21	321
22	222
23	123
24	324
25	225
26	126
27	327
28	228
29	129
30	30
31	231
32	132
33	33
34	234
35	135
36	36
37	237
38	138
39	39
40	240
41	141
42	42
43	243
44	144
45	45
46	246
47	147
48	48
49	249
50	150
51	51
52	252
53	153
54	54
55	255
56	156

[21, 12, 3, 24, 15, 6, 27, 18, 9, 210, 111, 312, 213, 114, 315, 216, 117, 318, 219, 120, 321, 222, 123, 324, 225, 126, 327, 228, 129, 30, 231, 132, 33, 234, 135, 36, 237, 138, 39, 240, 141, 42, 243, 144, 45, 246, 147, 48, 249, 150, 51, 252, 153, 54, 255, 156]

cp's OEIS Frontend

A258083 Smallest multiple of 3 not appearing earlier that ends with n.

Table of values

List of values

n	a(n)
1	21
2	12
3	3
4	24
5	15
6	6
7	27
8	18
9	9
10	210
11	111
12	312
13	213
14	114
15	315
16	216
17	117
18	318
19	219
20	120
21	321
22	222
23	123
24	324
25	225
26	126
27	327
28	228
29	129
30	30
31	231
32	132
33	33
34	234
35	135
36	36
37	237
38	138
39	39
40	240
41	141
42	42
43	243
44	144
45	45
46	246
47	147
48	48
49	249
50	150
51	51
52	252
53	153
54	54
55	255
56	156

n	a(n)
1	21
2	12
3	3
4	24
5	15
6	6
7	27
8	18
9	9
10	210
11	111
12	312
13	213
14	114
15	315
16	216
17	117
18	318
19	219
20	120
21	321
22	222
23	123
24	324
25	225
26	126
27	327
28	228
29	129
30	30
31	231
32	132
33	33
34	234
35	135
36	36
37	237
38	138
39	39
40	240
41	141
42	42
43	243
44	144
45	45
46	246
47	147
48	48
49	249
50	150
51	51
52	252
53	153
54	54
55	255
56	156

n	a(n)
1	21
2	12
3	3
4	24
5	15
6	6
7	27
8	18
9	9
10	210
11	111
12	312
13	213
14	114
15	315
16	216
17	117
18	318
19	219
20	120
21	321
22	222
23	123
24	324
25	225
26	126
27	327
28	228
29	129
30	30
31	231
32	132
33	33
34	234
35	135
36	36
37	237
38	138
39	39
40	240
41	141
42	42
43	243
44	144
45	45
46	246
47	147
48	48
49	249
50	150
51	51
52	252
53	153
54	54
55	255
56	156