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.

A352700 G.f.: Sum_{n>=0} binomial((n+1)*(2*n+1),n)/(2*n+1) * x^n / C(x)^(n*(2*n+1)+1), where C(x) = 1 + x*C(x)^2 is the Catalan function (A000108).

Table of values

n a(n)
0 1
1 1
2 12
3 239
4 7178
5 296092
6 15666162
7 1014796995
8 77899495174
9 6919858148750
10 698584345392968
11 79022119891573410
12 9902447587480555624
13 1361894352334815968554
14 203969111022547680433454
15 33047362680815865252524643
16 5759708920548423261284008230

List of values

[1, 1, 12, 239, 7178, 296092, 15666162, 1014796995, 77899495174, 6919858148750, 698584345392968, 79022119891573410, 9902447587480555624, 1361894352334815968554, 203969111022547680433454, 33047362680815865252524643, 5759708920548423261284008230]