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.

A317350 G.f. satisfies: A(x) = Sum_{n>=0} ( (1+x)^n - A(x) )^n / (2 - (1+x)^n*A(x))^(n+1).

Table of values

n a(n)
0 1
1 1
2 2
3 12
4 200
5 4160
6 99862
7 2767792
8 87200166
9 3076185774
10 120118928740
11 5144915483804
12 239932734849080
13 12106729328331780
14 657428964058944716
15 38239094075667233528
16 2372421500769940561658
17 156417910715313378830238
18 10923007991339600108590688
19 805475337677577620666606928
20 62550798567594006106067173708

List of values

[1, 1, 2, 12, 200, 4160, 99862, 2767792, 87200166, 3076185774, 120118928740, 5144915483804, 239932734849080, 12106729328331780, 657428964058944716, 38239094075667233528, 2372421500769940561658, 156417910715313378830238, 10923007991339600108590688, 805475337677577620666606928, 62550798567594006106067173708]