%I #5 Nov 10 2015 11:18:00

%S 64,9261,1440000,117534144,12968882161,1376159333484,147813083354689,

%T 15629429778886656,1668183383627274240,177524398873895731200,

%U 18903690233550713749504

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

%C Row 6 of A264142.

%e Some solutions for n=2

%e ..4..5..2....0..1..3....0..5..3....0..1..3....4..5..2....0..1..2....4..5..2

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

%e ..6..3..9....6..7..4....6..7..8....6..7..8...10.11..8....5..7..4....6..7..9

%e ..8.10.11...13.10.11....9.14.12....9.10.11....9..6..7....9.10.12....8.14.11

%e .16.13.14...12..9.14...11.17.10...12.13.15...16.13.14...11.17.14...12.17.10

%e .19.12.17...15.16.18...19.16.13...14.20.17...19.12.18...19.20.13...15.16.13

%e .18.15.20...17.19.20...18.15.20...18.19.16...17.15.20...18.15.16...18.19.20

%Y Cf. A264142.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 04 2015