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.

A157074 Number of integer sequences of length n+1 with sum zero and sum of absolute values 50.

Table of values

n a(n)
1 2
2 150
3 6252
4 182500
5 4112502
6 75578370
7 1173777752
8 15795816120
9 187652162502
10 1996568642530
11 19245807386652
12 169668375420180
13 1378768046330402
14 10396793993805030
15 73166155146412752
16 482928212647720720
17 3002693915693248002
18 17655197338344400470

List of values

[2, 150, 6252, 182500, 4112502, 75578370, 1173777752, 15795816120, 187652162502, 1996568642530, 19245807386652, 169668375420180, 1378768046330402, 10396793993805030, 73166155146412752, 482928212647720720, 3002693915693248002, 17655197338344400470]

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

Content is available under The OEIS End-User License Agreement.