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.
%I A222844 #6 Jul 23 2025 03:08:28 %S A222844 3,27,576,4896,63455,531864,5916807,49852089,513363015,4356708120, %T A222844 43202639844,369377896383,3577597178939,30801614053968, %U A222844 293760174674232,2545094117389824,24014459778781840,209083911110141112 %N A222844 Number of (n+1)X3 0..2 arrays with every row and column least squares fitting to a positive slope straight line. %C A222844 Column 2 of A222847 %H A222844 R. H. Hardin, <a href="/A222844/b222844.txt">Table of n, a(n) for n = 1..22</a> %e A222844 Some solutions for n=3 %e A222844 ..0..0..1....0..0..1....0..0..1....0..0..2....0..0..1....0..1..2....0..0..1 %e A222844 ..0..0..1....1..1..2....0..1..2....0..1..1....0..1..2....0..2..1....0..1..1 %e A222844 ..1..0..2....0..2..2....1..1..2....0..0..2....0..2..1....1..1..2....1..0..2 %e A222844 ..1..2..2....1..1..2....1..1..2....1..1..2....1..2..2....1..2..2....0..2..2 %K A222844 nonn %O A222844 1,1 %A A222844 _R. H. Hardin_ Mar 07 2013