A185661 - cp's OEIS frontend

A185661 Smallest set containing 1 and closed under the operations x->2x+1, x->3x+1, x->6x+1.

n	a(n)
1	1
2	3
3	4
4	7
5	9
6	10
7	13
8	15
9	19
10	21
11	22
12	25
13	27
14	28
15	31
16	39
17	40
18	43
19	45
20	46
21	51
22	55
23	57
24	58
25	61
26	63
27	64
28	67
29	76
30	79
31	81
32	82
33	85
34	87
35	91
36	93
37	94
38	103
39	111
40	115
41	117
42	118
43	121
44	123
45	127
46	129
47	130
48	133
49	135
50	136
51	139
52	151
53	153
54	154
55	159
56	163
57	165
58	166
59	169
60	171
61	172
62	175
63	183
64	184
65	187
66	189
67	190
68	193
69	202

[1, 3, 4, 7, 9, 10, 13, 15, 19, 21, 22, 25, 27, 28, 31, 39, 40, 43, 45, 46, 51, 55, 57, 58, 61, 63, 64, 67, 76, 79, 81, 82, 85, 87, 91, 93, 94, 103, 111, 115, 117, 118, 121, 123, 127, 129, 130, 133, 135, 136, 139, 151, 153, 154, 159, 163, 165, 166, 169, 171, 172, 175, 183, 184, 187, 189, 190, 193, 202]

cp's OEIS Frontend

A185661 Smallest set containing 1 and closed under the operations x->2x+1, x->3x+1, x->6x+1.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	9
6	10
7	13
8	15
9	19
10	21
11	22
12	25
13	27
14	28
15	31
16	39
17	40
18	43
19	45
20	46
21	51
22	55
23	57
24	58
25	61
26	63
27	64
28	67
29	76
30	79
31	81
32	82
33	85
34	87
35	91
36	93
37	94
38	103
39	111
40	115
41	117
42	118
43	121
44	123
45	127
46	129
47	130
48	133
49	135
50	136
51	139
52	151
53	153
54	154
55	159
56	163
57	165
58	166
59	169
60	171
61	172
62	175
63	183
64	184
65	187
66	189
67	190
68	193
69	202

n	a(n)
1	1
2	3
3	4
4	7
5	9
6	10
7	13
8	15
9	19
10	21
11	22
12	25
13	27
14	28
15	31
16	39
17	40
18	43
19	45
20	46
21	51
22	55
23	57
24	58
25	61
26	63
27	64
28	67
29	76
30	79
31	81
32	82
33	85
34	87
35	91
36	93
37	94
38	103
39	111
40	115
41	117
42	118
43	121
44	123
45	127
46	129
47	130
48	133
49	135
50	136
51	139
52	151
53	153
54	154
55	159
56	163
57	165
58	166
59	169
60	171
61	172
62	175
63	183
64	184
65	187
66	189
67	190
68	193
69	202

n	a(n)
1	1
2	3
3	4
4	7
5	9
6	10
7	13
8	15
9	19
10	21
11	22
12	25
13	27
14	28
15	31
16	39
17	40
18	43
19	45
20	46
21	51
22	55
23	57
24	58
25	61
26	63
27	64
28	67
29	76
30	79
31	81
32	82
33	85
34	87
35	91
36	93
37	94
38	103
39	111
40	115
41	117
42	118
43	121
44	123
45	127
46	129
47	130
48	133
49	135
50	136
51	139
52	151
53	153
54	154
55	159
56	163
57	165
58	166
59	169
60	171
61	172
62	175
63	183
64	184
65	187
66	189
67	190
68	193
69	202