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.

A356691 a(n) = n! * Sum_{k=0..n} k^(2*k)/k!.

Table of values

n a(n)
0 1
1 2
2 20
3 789
4 68692
5 10109085
6 2237436846
7 693885130771
8 287026057756824
9 152677869816810537
10 101526778698168105370
11 82519543952519610272391
12 80487081730821079456710228
13 92779662255769290691336848973
14 124775610962828705895908497741878

List of values

[1, 2, 20, 789, 68692, 10109085, 2237436846, 693885130771, 287026057756824, 152677869816810537, 101526778698168105370, 82519543952519610272391, 80487081730821079456710228, 92779662255769290691336848973, 124775610962828705895908497741878]

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

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