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.

A063132 Composite numbers not divisible by 2 or 3 which in base 3 contain their largest proper factor as a substring.

Table of values

n a(n)
1 49
2 427
3 671
4 949
5 1387
6 1679
7 1849
8 2117
9 3397
10 3829
11 4307
12 6017
13 6169
14 7141
15 8299
16 10547
17 11773
18 13703
19 17161
20 17819
21 19517
22 24523
23 25019
24 25877
25 29941
26 30607
27 31459
28 33853
29 34447
30 34547
31 35657
32 35947
33 38243
34 38491
35 38579
36 39283
37 45571

List of values

[49, 427, 671, 949, 1387, 1679, 1849, 2117, 3397, 3829, 4307, 6017, 6169, 7141, 8299, 10547, 11773, 13703, 17161, 17819, 19517, 24523, 25019, 25877, 29941, 30607, 31459, 33853, 34447, 34547, 35657, 35947, 38243, 38491, 38579, 39283, 45571]

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

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