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.

A329339 a(n) = 2^A051903(n)*Sum_{k=0..n-1} 2^(A268336(n)*k): upper bound for A329000(n).

Table of values

n a(n)
1 1
2 6
3 42
4 60
5 139810
6 126
7 139620524162
8 2040
9 349524
10 699050
11 2537779500750160131246576896002
12 16380
13 44612382091907903486070965589630128805126146
14 1256584717458
15 153722867280912930
16 1048560
17 231587712222682663714935471840371426842813815977643091627066215779128553111554
18 1048572

List of values

[1, 6, 42, 60, 139810, 126, 139620524162, 2040, 349524, 699050, 2537779500750160131246576896002, 16380, 44612382091907903486070965589630128805126146, 1256584717458, 153722867280912930, 1048560, 231587712222682663714935471840371426842813815977643091627066215779128553111554, 1048572]