A264140 - OEIS

A264140

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

%I #6 Nov 10 2015 11:15:47

%S 320,18000,1903336,163887724,15238898080,1376159333484,

%T 125699825697364,11431703076430455,1041358177270016565,

%U 94799852855903563200,8632210581410571081709,785952052399566693917019

%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,-2 or 1,1.

%C Column 6 of A264142.

%H R. H. Hardin, <a href="/A264140/b264140.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A264140/a264140.txt">Empirical recurrence of order 95</a>

%F Empirical recurrence of order 95 (see link above)

%e Some solutions for n=2

%e ..0..1..2..3..4.10..6....8..1..7..3..4..5..6....8..9..2..3..4.13..6

%e .15..8..9..5.19.17.18....2..0.14.15.11.20.13....7..0..1.18.16.12..5

%e .14..7.16.12.13.11.20....9.10.16.17.18.19.12...14.15.11.17.10.19.20

%Y Cf. A264142.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 04 2015