cp's OEIS Frontend

A263422 Number of nX4 arrays of permutations of 0..n*4-1 with each element moved a city block distance of 0 or 2.

%I A263422 #4 Oct 17 2015 15:52:43
%S A263422 4,196,26244,1993744,141086884,10808097444,831331827076,
%T A263422 63322713408249,4821670840815504,367536797553489424,
%U A263422 28019444925515784976,2135875239154027938961,162806957002649300388100
%N A263422 Number of nX4 arrays of permutations of 0..n*4-1 with each element moved a city block distance of 0 or 2.
%C A263422 Column 4 of A263424.
%H A263422 R. H. Hardin, <a href="/A263422/b263422.txt">Table of n, a(n) for n = 1..157</a>
%e A263422 Some solutions for n=3
%e A263422 ..8..9..0..6....0..9.10..1....0..1..7.11....0..3.10.11....8..3..0..6
%e A263422 ..1..7..3..2....6..7.11..5....9..5..4..2....4..2..9..7....9..2..1..5
%e A263422 .10..4..5.11....8..4..2..3....8..6.10..3....8..1..5..6...10..4..7.11
%Y A263422 Cf. A263424.
%K A263422 nonn
%O A263422 1,1
%A A263422 _R. H. Hardin_, Oct 17 2015