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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.

A350503 Self-convolution of sigma_n(n).

Table of values

n a(n)
1 1
2 10
3 81
4 826
5 9766
6 141448
7 2371173
8 46285454
9 1025108476
10 25583455958
11 709014239914
12 21645251877538
13 721074846998772
14 26036416881319860
15 1012400617533469985
16 42173042024213765280
17 1873237518724869171647
18 88367918629612594749582
19 4411615292876287372479856

List of values

[1, 10, 81, 826, 9766, 141448, 2371173, 46285454, 1025108476, 25583455958, 709014239914, 21645251877538, 721074846998772, 26036416881319860, 1012400617533469985, 42173042024213765280, 1873237518724869171647, 88367918629612594749582, 4411615292876287372479856]

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

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