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.

A383880 a(n) = [x^n] 1/Product_{k=0..n-1} (1 - k*x)^2.

Table of values

n a(n)
0 1
1 0
2 3
3 72
4 2307
5 95060
6 4817990
7 290523576
8 20333487251
9 1621036680120
10 145057745669850
11 14399349523416000
12 1570425994090538574
13 186674663305762642296
14 24021930409036829669036
15 3327140929951823209016400
16 493515678917684006649451651
17 78054583374364036172432641200

List of values

[1, 0, 3, 72, 2307, 95060, 4817990, 290523576, 20333487251, 1621036680120, 145057745669850, 14399349523416000, 1570425994090538574, 186674663305762642296, 24021930409036829669036, 3327140929951823209016400, 493515678917684006649451651, 78054583374364036172432641200]

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

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