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.

A076573 a(0)=1 if n>0 a(n)=(-1)^(n+1)/(2n+1) * Sum_{k=0..n} 4^(5k)*B(2k)*C(2n+1,2k) where B(k) denotes the k-th Bernoulli number.

Table of values

n a(n)
0 1
1 171
2 34611
3 25391031
4 36412266951
5 84746764368291
6 289947183663000891
7 1368522076163485223151
8 8518903397471846192668431
9 67614595884596632809835843611
10 666443065911076418265517497701571

List of values

[1, 171, 34611, 25391031, 36412266951, 84746764368291, 289947183663000891, 1368522076163485223151, 8518903397471846192668431, 67614595884596632809835843611, 666443065911076418265517497701571]