A214357 - OEIS

%I #6 Jul 13 2012 06:39:05

%S 284724,293207907,49555044358,3160001994563,107180513854464,

%T 2318511875463567,35699489509054494,420636918387554285,

%U 3989623026879608554,31608512602702469537,215115456420213959696

%N Number of 7X7X7 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors

%C Row 7 of A214352

%H R. H. Hardin, <a href="/A214357/b214357.txt">Table of n, a(n) for n = 1..13</a>

%e Some solutions for n=1

%e ........0..............0..............0..............0..............0

%e .......0.1............0.0............0.0............0.1............0.0

%e ......0.1.0..........0.0.0..........0.0.0..........0.1.1..........1.0.0

%e .....0.1.0.0........1.0.1.0........0.1.0.1........0.0.1.1........1.1.0.1

%e ....0.0.1.0.0......1.0.1.1.0......0.1.1.0.1......0.0.1.1.0......1.1.0.0.1

%e ...1.0.1.0.0.1....1.1.0.1.1.0....0.1.1.0.1.1....1.0.1.1.0.0....1.1.0.0.1.1

%e ..0.1.0.1.0.1.0..1.1.0.0.1.0.0..0.0.1.0.1.0.1..1.0.1.0.1.0.0..0.1.0.1.0.1.1

%K nonn

%O 1,1

%A _R. H. Hardin_ Jul 13 2012