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.

A359331 Nonprime numbers k for which k*k' is a palindrome, where k' is the arithmetic derivative of k (A003415).

Table of values

n a(n)
1 1
2 34
3 44
4 49
5 121
6 476
7 524
8 533
9 1808
10 6797
11 7326
12 10016
13 10201
14 10403
15 10817
16 16019
17 17831
18 26322
19 33898
20 55198
21 57247
22 74711
23 87241
24 131395
25 148753
26 156029
27 239593
28 240021
29 289831
30 295022
31 423758
32 441691
33 595777
34 725754
35 900009
36 2568543
37 2910271
38 2981619

List of values

[1, 34, 44, 49, 121, 476, 524, 533, 1808, 6797, 7326, 10016, 10201, 10403, 10817, 16019, 17831, 26322, 33898, 55198, 57247, 74711, 87241, 131395, 148753, 156029, 239593, 240021, 289831, 295022, 423758, 441691, 595777, 725754, 900009, 2568543, 2910271, 2981619]

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

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