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.

A299121 a(n) = Sum_{k=0..n} (k*(n-k))!.

Table of values

n a(n)
0 1
1 2
2 3
3 6
4 38
5 1490
6 443762
7 965262242
8 23539096637282
9 4878608938121399042
10 16752209028723653862101762
11 531115497554502361264846265433602
12 392660148984369152453298787770243889113602
13 2811644066816242246665284589590844386691155533363202

List of values

[1, 2, 3, 6, 38, 1490, 443762, 965262242, 23539096637282, 4878608938121399042, 16752209028723653862101762, 531115497554502361264846265433602, 392660148984369152453298787770243889113602, 2811644066816242246665284589590844386691155533363202]

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

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