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.

A063138 Composite numbers not divisible by 2, 3, 5 or 7 which in base 2 contain their largest proper factor as a substring.

Table of values

n a(n)
1 407
2 493
3 893
4 1189
5 1343
6 1403
7 1643
8 1681
9 1961
10 3151
11 3223
12 4063
13 4579
14 7087
15 7597
16 7979
17 8791
18 9167
19 10579
20 11227
21 13303
22 14219
23 15487
24 16147
25 23479
26 24341
27 25751
28 26101
29 27571
30 28757
31 30461
32 30607
33 33431
34 34093
35 35417
36 36349
37 39917

List of values

[407, 493, 893, 1189, 1343, 1403, 1643, 1681, 1961, 3151, 3223, 4063, 4579, 7087, 7597, 7979, 8791, 9167, 10579, 11227, 13303, 14219, 15487, 16147, 23479, 24341, 25751, 26101, 27571, 28757, 30461, 30607, 33431, 34093, 35417, 36349, 39917]

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

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