A075318 - cp's OEIS frontend

A075318 Pair the odd numbers such that the k-th pair is (r, r+2k) where r is the smallest odd number not included earlier: (1,3),(5,9),(7,13),(11,19),(15,25),(17,29),(21,35),(23,39),(27,45),... This is the sequence of the second member of pairs.

n	a(n)
1	3
2	9
3	13
4	19
5	25
6	29
7	35
8	39
9	45
10	51
11	55
12	61
13	67
14	71
15	77
16	81
17	87
18	93
19	97
20	103
21	107
22	113
23	119
24	123
25	129
26	135
27	139
28	145
29	149
30	155
31	161
32	165
33	171
34	177
35	181
36	187
37	191
38	197
39	203
40	207
41	213
42	217
43	223
44	229
45	233
46	239
47	245
48	249
49	255
50	259
51	265
52	271
53	275
54	281
55	285
56	291
57	297

[3, 9, 13, 19, 25, 29, 35, 39, 45, 51, 55, 61, 67, 71, 77, 81, 87, 93, 97, 103, 107, 113, 119, 123, 129, 135, 139, 145, 149, 155, 161, 165, 171, 177, 181, 187, 191, 197, 203, 207, 213, 217, 223, 229, 233, 239, 245, 249, 255, 259, 265, 271, 275, 281, 285, 291, 297]

cp's OEIS Frontend

A075318 Pair the odd numbers such that the k-th pair is (r, r+2k) where r is the smallest odd number not included earlier: (1,3),(5,9),(7,13),(11,19),(15,25),(17,29),(21,35),(23,39),(27,45),... This is the sequence of the second member of pairs.

Table of values

List of values

n	a(n)
1	3
2	9
3	13
4	19
5	25
6	29
7	35
8	39
9	45
10	51
11	55
12	61
13	67
14	71
15	77
16	81
17	87
18	93
19	97
20	103
21	107
22	113
23	119
24	123
25	129
26	135
27	139
28	145
29	149
30	155
31	161
32	165
33	171
34	177
35	181
36	187
37	191
38	197
39	203
40	207
41	213
42	217
43	223
44	229
45	233
46	239
47	245
48	249
49	255
50	259
51	265
52	271
53	275
54	281
55	285
56	291
57	297

n	a(n)
1	3
2	9
3	13
4	19
5	25
6	29
7	35
8	39
9	45
10	51
11	55
12	61
13	67
14	71
15	77
16	81
17	87
18	93
19	97
20	103
21	107
22	113
23	119
24	123
25	129
26	135
27	139
28	145
29	149
30	155
31	161
32	165
33	171
34	177
35	181
36	187
37	191
38	197
39	203
40	207
41	213
42	217
43	223
44	229
45	233
46	239
47	245
48	249
49	255
50	259
51	265
52	271
53	275
54	281
55	285
56	291
57	297

n	a(n)
1	3
2	9
3	13
4	19
5	25
6	29
7	35
8	39
9	45
10	51
11	55
12	61
13	67
14	71
15	77
16	81
17	87
18	93
19	97
20	103
21	107
22	113
23	119
24	123
25	129
26	135
27	139
28	145
29	149
30	155
31	161
32	165
33	171
34	177
35	181
36	187
37	191
38	197
39	203
40	207
41	213
42	217
43	223
44	229
45	233
46	239
47	245
48	249
49	255
50	259
51	265
52	271
53	275
54	281
55	285
56	291
57	297