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.

A061971 Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 18 (most significant digit on right).

Table of values

n a(n)
1 1
2 17
3 89
4 6343
5 9707
6 9799
7 91069
8 120581
9 484307
10 725341
11 2571749
12 3432583
13 4482203

List of values

[1, 17, 89, 6343, 9707, 9799, 91069, 120581, 484307, 725341, 2571749, 3432583, 4482203]