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%I #4 Nov 17 2015 09:32:06
%S 1,316,3273,59259,1270837,22000750,434877820,7956766442,145179765157,
%T 2721929529883,49938237730629,921931916235879,17054303884627492,
%U 314243411820771632,5803492808415667616,107123397799486933822
%N Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.
%C Row 7 of A264534.
%H R. H. Hardin, <a href="/A264540/b264540.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..5.13.14..8..9....5.13..7..2..9...12.13.14..2..3....5.13.14..8..9
%e ..0..1..2..3..4....0..1.12..3..4....0..1.19..7..4....0..1..2..3..4
%e .15..6..7.12.19...15..6.24..8.19....5..6.11..8..9...15..6..7.18.19
%e .10.11.22.17.24...10.11.29.17.14...10.15.22.17.18...10.11.12.17.24
%e .25.16.34.18.23...32.16.21.18.23...25.16.21.28.23...32.16.21.22.23
%e .20.21.39.27.28...20.25.22.33.34...20.38.39.33.24...20.25.39.33.28
%e .35.26.37.32.29...35.26.27.28.39...35.26.27.32.29...35.26.27.38.29
%e .30.31.36.33.38...30.31.36.37.38...30.31.36.37.34...30.31.36.37.34
%Y Cf. A264534.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 17 2015
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