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.

A222958 Number of nX7 0..1 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.

Table of values

n a(n)
1 20
2 20
3 400
4 400
5 8000
6 8000
7 323600
8 215892
9 14843920
10 9734400
11 1138729280
12 631004724
13 117308595520
14 59768363024
15 14742894291200
16 7399937947392
17 2167430898315280
18 1074761911462928
19 361218009407664960

List of values

[20, 20, 400, 400, 8000, 8000, 323600, 215892, 14843920, 9734400, 1138729280, 631004724, 117308595520, 59768363024, 14742894291200, 7399937947392, 2167430898315280, 1074761911462928, 361218009407664960]

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

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