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.

A203519 a(n) = v(n+1)/v(n), where v=A203518.

Table of values

n a(n)
1 3
2 20
3 336
4 12870
5 1270080
6 311323584
7 197399802600
8 321880885724160
9 1365311591573529600
10 15068868587132753685600
11 434169705562891299584593920
12 32678748925653999616045678080000
13 6431834564578466234122576826339121600

List of values

[3, 20, 336, 12870, 1270080, 311323584, 197399802600, 321880885724160, 1365311591573529600, 15068868587132753685600, 434169705562891299584593920, 32678748925653999616045678080000, 6431834564578466234122576826339121600]

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

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