A026139 - cp's OEIS frontend

A026139 a(n) = s(k), where k is the n-th number such that s(j) < s(k) for all j < k, where s = A026136. Also a(n) = 2*t(n) - 1, where t = A026138.

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	21
8	25
9	27
10	33
11	39
12	43
13	45
14	51
15	55
16	57
17	61
18	63
19	69
20	73
21	75
22	79
23	81
24	87
25	93
26	97
27	99
28	105
29	111
30	115
31	117
32	123
33	127
34	129
35	133
36	135
37	141
38	147
39	151
40	153
41	159
42	163
43	165
44	169
45	171
46	177
47	181
48	183
49	187
50	189
51	195
52	201
53	205
54	207
55	213

[1, 3, 7, 9, 15, 19, 21, 25, 27, 33, 39, 43, 45, 51, 55, 57, 61, 63, 69, 73, 75, 79, 81, 87, 93, 97, 99, 105, 111, 115, 117, 123, 127, 129, 133, 135, 141, 147, 151, 153, 159, 163, 165, 169, 171, 177, 181, 183, 187, 189, 195, 201, 205, 207, 213]

cp's OEIS Frontend

A026139 a(n) = s(k), where k is the n-th number such that s(j) < s(k) for all j < k, where s = A026136. Also a(n) = 2*t(n) - 1, where t = A026138.

Table of values

List of values

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	21
8	25
9	27
10	33
11	39
12	43
13	45
14	51
15	55
16	57
17	61
18	63
19	69
20	73
21	75
22	79
23	81
24	87
25	93
26	97
27	99
28	105
29	111
30	115
31	117
32	123
33	127
34	129
35	133
36	135
37	141
38	147
39	151
40	153
41	159
42	163
43	165
44	169
45	171
46	177
47	181
48	183
49	187
50	189
51	195
52	201
53	205
54	207
55	213

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	21
8	25
9	27
10	33
11	39
12	43
13	45
14	51
15	55
16	57
17	61
18	63
19	69
20	73
21	75
22	79
23	81
24	87
25	93
26	97
27	99
28	105
29	111
30	115
31	117
32	123
33	127
34	129
35	133
36	135
37	141
38	147
39	151
40	153
41	159
42	163
43	165
44	169
45	171
46	177
47	181
48	183
49	187
50	189
51	195
52	201
53	205
54	207
55	213

n	a(n)
1	1
2	3
3	7
4	9
5	15
6	19
7	21
8	25
9	27
10	33
11	39
12	43
13	45
14	51
15	55
16	57
17	61
18	63
19	69
20	73
21	75
22	79
23	81
24	87
25	93
26	97
27	99
28	105
29	111
30	115
31	117
32	123
33	127
34	129
35	133
36	135
37	141
38	147
39	151
40	153
41	159
42	163
43	165
44	169
45	171
46	177
47	181
48	183
49	187
50	189
51	195
52	201
53	205
54	207
55	213