A191106 - cp's OEIS frontend

A191106 Increasing sequence generated by these rules: a(1)=1, and if x is in a then 3x-2 and 3x are in a.

n	a(n)
1	1
2	3
3	7
4	9
5	19
6	21
7	25
8	27
9	55
10	57
11	61
12	63
13	73
14	75
15	79
16	81
17	163
18	165
19	169
20	171
21	181
22	183
23	187
24	189
25	217
26	219
27	223
28	225
29	235
30	237
31	241
32	243
33	487
34	489
35	493
36	495
37	505
38	507
39	511
40	513
41	541
42	543
43	547
44	549
45	559
46	561
47	565
48	567
49	649
50	651
51	655
52	657
53	667
54	669
55	673
56	675
57	703
58	705
59	709
60	711
61	721
62	723
63	727
64	729
65	1459
66	1461
67	1465
68	1467
69	1477

[1, 3, 7, 9, 19, 21, 25, 27, 55, 57, 61, 63, 73, 75, 79, 81, 163, 165, 169, 171, 181, 183, 187, 189, 217, 219, 223, 225, 235, 237, 241, 243, 487, 489, 493, 495, 505, 507, 511, 513, 541, 543, 547, 549, 559, 561, 565, 567, 649, 651, 655, 657, 667, 669, 673, 675, 703, 705, 709, 711, 721, 723, 727, 729, 1459, 1461, 1465, 1467, 1477]

cp's OEIS Frontend

A191106 Increasing sequence generated by these rules: a(1)=1, and if x is in a then 3x-2 and 3x are in a.

Table of values

List of values