A233977 - OEIS

A233977

Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13.

%I #6 Jun 02 2025 09:07:14

%S 50680,453988,4097024,44228076,495606992,6350866260,83799022884,

%T 1214582838052,17693256523624,274694461515620,4204974056669288,

%U 67479875037957020,1056731351332106140,17215641342339155708

%N Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13.

%C Column 4 of A233980

%H R. H. Hardin, <a href="/A233977/b233977.txt">Table of n, a(n) for n = 1..120</a>

%e Some solutions for n=1

%e ..2..3..0..2..0....5..5..3..2..3....4..6..2..0..3....6..2..3..6..5

%e ..0..4..4..1..4....1..4..1..5..1....3..2..3..4..2....5..6..2..2..6

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 18 2013