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.

A273319 a(n) = ((2*n+1)^(n+1) + (-1)^n)/(n+1)^2.

Table of values

n a(n)
0 2
1 2
2 14
3 150
4 2362
5 49210
6 1280582
7 40045166
8 1464047858
9 61310662578
10 2894855376382
11 152184891889030
12 8817255144288554
13 558260148630165098
14 38351949989325264182
15 2841496569324942436830

List of values

[2, 2, 14, 150, 2362, 49210, 1280582, 40045166, 1464047858, 61310662578, 2894855376382, 152184891889030, 8817255144288554, 558260148630165098, 38351949989325264182, 2841496569324942436830]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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