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.

A360830 Numbers that when concatenated with the natural numbers from 1 to N are divisible by the corresponding order number.

Table of values

n a(n)
1 1
2 3
3 6
4 42
5 84
6 252
7 2772
8 36036
9 612612
10 11639628
11 267711444
12 803134332
13 23290895628
14 722017764468
15 1444035528936
16 53429314570632
17 2190601897395912
18 94195881588024216
19 4427206434637138152
20 30990445042459967064

List of values

[1, 3, 6, 42, 84, 252, 2772, 36036, 612612, 11639628, 267711444, 803134332, 23290895628, 722017764468, 1444035528936, 53429314570632, 2190601897395912, 94195881588024216, 4427206434637138152, 30990445042459967064]

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

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