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.

A206850 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k^2) * x^k ).

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 8
5 56
6 522
7 5972
8 424954
9 16560881
10 1528544877
11 483389731955
12 70609119680761
13 53933819677734187
14 58734216507052608587
15 38789122414735365076327
16 202547156817505166242299130
17 712808848212730366850407506134
18 2914935606380176735260119042755221

List of values

[1, 1, 2, 4, 8, 56, 522, 5972, 424954, 16560881, 1528544877, 483389731955, 70609119680761, 53933819677734187, 58734216507052608587, 38789122414735365076327, 202547156817505166242299130, 712808848212730366850407506134, 2914935606380176735260119042755221]