A264270 - OEIS

%I #6 Nov 10 2015 11:31:38

%S 442,32000,4861800,600090240,80568542340,10563801093680,

%T 1398071103483637,184549492112860840,24385615337150116761,

%U 3221323854569532915840,425580239886807520132066,56223231572414176702873320

%N Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,0 or 1,2.

%C Column 6 of A264272.

%H R. H. Hardin, <a href="/A264270/b264270.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..1..2..3..4.12..6....7..8.11.12..4..5.13....0..1..2..3..4.12..6

%e .16..8..9.19.11..5.20....0..1.18.19..2..3..6...14.15..9.10.20..5.13

%e .14.15..7.17.18.10.13...14.15.16.17..9.10.20....7..8.16.17.18.19.11

%Y Cf. A264272.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 10 2015