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A264531 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change -2,-2 -1,0 0,1 or 1,0. 1

%I #4 Nov 17 2015 09:25:05

%S 1,16,89,824,13144,119810,1270837,14103392,139422769,1489609039,

%T 15098856568,157378841499,1607018839580,16616194539942,

%U 170301735785373,1753220036739752,18005670271857409,185034610687175581

%N Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.

%C Column 5 of A264534.

%H R. H. Hardin, <a href="/A264531/b264531.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e .14..0..8.17..3.11...14..0..8..9.10..4....6.15..8.17..3..4...14..7.16.17..3..4

%e .12..1..2.15..4..5...12..1..2..3.16..5....0..1..2.23..9..5....0..1..2..8..9..5

%e ..6..7.20..9.10.23....6..7.13.29.15.11...26..7.13.14.10.11....6.27.13.21.10.11

%e .24.13.26.27.16.29...24.25.26.27.28.17...12.25.19.27.16.29...12.25.19.15.28.29

%e .18.19.25.21.22.28...18.19.20.21.22.23...18.24.20.21.22.28...18.24.20.26.22.23

%Y Cf. A264534.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 17 2015

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Last modified April 21 17:36 EDT 2024. Contains 371874 sequences. (Running on oeis4.)