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.

A029533 Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 16 (most significant digit on right and removing all least significant zeros before concatenation).

Table of values

n a(n)
1 1
2 3
3 5
4 9
5 15
6 19
7 21
8 43
9 57
10 255
11 345
12 385
13 505
14 1131
15 1395
16 1585
17 7205
18 11565
19 38949
20 270425
21 684555
22 8311925

List of values

[1, 3, 5, 9, 15, 19, 21, 43, 57, 255, 345, 385, 505, 1131, 1395, 1585, 7205, 11565, 38949, 270425, 684555, 8311925]

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

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