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%I #5 Nov 10 2015 10:59:03
%S 1,125,15625,450000,12960000,608212800,28543426704,1182858335568,
%T 49018425731856,2119255344115812,91623571065536449,
%U 3925600962291584977,168191904505904029921,7232349156077380791312
%N Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.
%C Row 5 of A264059.
%e Some solutions for n=3
%e ..6..1..2..3....6..1..2..9....6..7..2..3....6..7..2..3....6..1..2..3
%e ..4..5..0..7...10..5..0..7....4.11..0..1...10..5..0..1...10..5..0..7
%e .14..9.10.11...14..3..4.11...14..9.10..5....8..9..4.17....8.15..4.17
%e .12.19..8.21...18.19..8.15...18.19..8.21...12.19.14.15...12.19.20..9
%e .16.17.18.13...22.17.12.13...16.23.12.13...16.11.18.13...16.11.18.13
%e .20.15.22.23...20.21.16.23...20.15.22.17...20.21.22.23...14.21.22.23
%Y Cf. A264059.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 02 2015