cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A056531 Sequence remaining after a fourth round of Flavius Josephus sieve; remove every fifth term of A056530.

Table of values

n a(n)
1 1
2 3
3 7
4 13
5 19
6 25
7 27
8 31
9 39
10 43
11 49
12 51
13 61
14 63
15 67
16 73
17 79
18 85
19 87
20 91
21 99
22 103
23 109
24 111
25 121
26 123
27 127
28 133
29 139
30 145
31 147
32 151
33 159
34 163
35 169
36 171
37 181
38 183
39 187
40 193
41 199
42 205
43 207
44 211
45 219
46 223
47 229
48 231
49 241
50 243
51 247
52 253
53 259
54 265
55 267
56 271
57 279

List of values

[1, 3, 7, 13, 19, 25, 27, 31, 39, 43, 49, 51, 61, 63, 67, 73, 79, 85, 87, 91, 99, 103, 109, 111, 121, 123, 127, 133, 139, 145, 147, 151, 159, 163, 169, 171, 181, 183, 187, 193, 199, 205, 207, 211, 219, 223, 229, 231, 241, 243, 247, 253, 259, 265, 267, 271, 279]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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