The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #5 Dec 18 2015 18:17:45
%S 1,127,117585,845613769,47764170577925,21369796486647028143,
%T 76019997788404353762724447,2155668406192527252815282495516543
%N Number of lower triangles of an n X n integer array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by 6 or less and triangles differing by a constant counted only once
%C Column 6 of A195220
%e Some solutions for n=5
%e ...0...............0...............0...............0...............0
%e ..-4.-4...........-5..0...........-1..3............6..0............6..1
%e ...1..2..0........-5..0.-4........-1..4..1.........2..3..6.........2..2.-4
%e ..-2.-1..2..5......0.-4..1.-2.....-1..5..2.-4.....-2..0..1..2......6..0.-3.-1
%e ..-6.-2.-1..0..2...2..1..0.-5.-1...0..5.-1..0.-5..-6..0..3..4..5...3..1..0.-4.-1
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 13 2011