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.

A223744 Number of nX3 0..2 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 9
2 9
3 81
4 81
5 1521
6 1849
7 38025
8 59049
9 1461681
10 2368521
11 64112049
12 111450249
13 3167100729
14 5714604025
15 167633743761
16 311494585689
17 9370449532161
18 17792173577929
19 545559866271729
20 1054096283988801
21 32828183598395025

List of values

[9, 9, 81, 81, 1521, 1849, 38025, 59049, 1461681, 2368521, 64112049, 111450249, 3167100729, 5714604025, 167633743761, 311494585689, 9370449532161, 17792173577929, 545559866271729, 1054096283988801, 32828183598395025]

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

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