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.

A137157 G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^(2*2^n).

Table of values

n a(n)
0 1
1 2
2 5
3 24
4 239
5 4920
6 206727
7 17568408
8 3003763243
9 1030272816360
10 707851744149198
11 973425618916674288
12 2678332881795756783639
13 14741522294008025924154864
14 162290544340043699103996962253
15 3573515596966915773419766367302288
16 157376160486791180710467411977740266927

List of values

[1, 2, 5, 24, 239, 4920, 206727, 17568408, 3003763243, 1030272816360, 707851744149198, 973425618916674288, 2678332881795756783639, 14741522294008025924154864, 162290544340043699103996962253, 3573515596966915773419766367302288, 157376160486791180710467411977740266927]