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.

A376871 a(n) = Sum_{k=0..n} n^k * hypergeom([-k, k - n], [1], 2).

Table of values

n a(n)
0 1
1 2
2 11
3 88
4 941
5 12546
6 200479
7 3735264
8 79524793
9 1905008050
10 50720779691
11 1486111590360
12 47524305052069
13 1647275572867666
14 61522053792814679
15 2463133651846231936
16 105244572157172848369
17 4780359272226823337250
18 230016032074517010618403
19 11688053305141450955275800

List of values

[1, 2, 11, 88, 941, 12546, 200479, 3735264, 79524793, 1905008050, 50720779691, 1486111590360, 47524305052069, 1647275572867666, 61522053792814679, 2463133651846231936, 105244572157172848369, 4780359272226823337250, 230016032074517010618403, 11688053305141450955275800]

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

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