A236126 - OEIS

A236126

Number of (n+1) X (3+1) 0..3 arrays colored with the maximum plus the upper median minus the lower median of every 2 X 2 subblock.

%I #6 Mar 15 2023 11:01:27

%S 30660,1546388,79435700,4076346506,209227480445,10737439549324,

%T 551105575414582,28284020719761730,1451755964141843980,

%U 74511926985325716444,3824363300738515268818,196285032021223602980618

%N Number of (n+1) X (3+1) 0..3 arrays colored with the maximum plus the upper median minus the lower median of every 2 X 2 subblock.

%C Column 3 of A236127.

%H R. H. Hardin, <a href="/A236126/b236126.txt">Table of n, a(n) for n = 1..72</a>

%e Some solutions for n=1

%e ..1..3..0..2....1..0..2..1....0..2..0..3....1..3..2..1....1..0..0..2

%e ..2..3..3..1....0..0..3..1....3..3..0..3....3..1..3..2....1..3..1..0

%Y Cf. A236127.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 19 2014