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.

A222955 Number of nX1 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 2
2 2
3 4
4 4
5 8
6 8
7 20
8 18
9 52
10 48
11 152
12 138
13 472
14 428
15 1520
16 1392
17 5044
18 4652
19 17112
20 15884
21 59008
22 55124
23 206260
24 193724
25 729096
26 688008
27 2601640
28 2465134
29 9358944
30 8899700
31 33904324
32 32342236
33 123580884
34 118215780
35 452902072
36 434314138
37 1667837680

List of values

[2, 2, 4, 4, 8, 8, 20, 18, 52, 48, 152, 138, 472, 428, 1520, 1392, 5044, 4652, 17112, 15884, 59008, 55124, 206260, 193724, 729096, 688008, 2601640, 2465134, 9358944, 8899700, 33904324, 32342236, 123580884, 118215780, 452902072, 434314138, 1667837680]

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

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