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.

A223819 Number of nX1 0..3 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 4
2 4
3 16
4 22
5 112
6 172
7 1064
8 1742
9 11664
10 19976
11 138640
12 243802
13 1732272
14 3104312
15 22419608
16 40745940
17 297918608
18 547354320
19 4040882352
20 7488584886
21 55716851136
22 103984450924
23 778639744064
24 1461701983398
25 11004152490272
26 20759785009832

List of values

[4, 4, 16, 22, 112, 172, 1064, 1742, 11664, 19976, 138640, 243802, 1732272, 3104312, 22419608, 40745940, 297918608, 547354320, 4040882352, 7488584886, 55716851136, 103984450924, 778639744064, 1461701983398, 11004152490272, 20759785009832]

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

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