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A264877 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change 0,1 0,-1 -2,0 or 1,1. 1

%I #4 Nov 27 2015 07:33:48

%S 1,49,1101,22152,356692,4747695,68488297,1050281271,16268725036,

%T 247512489984,3713720283901,55663627322361,837518704332088,

%U 12633257316861814,190523379365155077,2870374015520944177

%N Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change 0,1 0,-1 -2,0 or 1,1.

%C Column 7 of A264878.

%H R. H. Hardin, <a href="/A264877/b264877.txt">Table of n, a(n) for n = 1..95</a>

%e Some solutions for n=4

%e .16..2..1..4..5.21..7.23...16..2..3..4..5.21..7.23...16..0..3.19..5..6..7.23

%e ..9..0.11.10..3.29.15..6....9..0..1.27.11.14.15..6....9.10..1..2.11..4.15.31

%e .32..8.19.20.36.12.13.14...32..8.19.10.36.12.13.22...32..8.17.20.36.12.13.14

%e .25.26.17.18.27.30.31.22...25.26.17.18.29.20.31.30...25.26.27.18.29.28.21.22

%e .33.24.35.34.37.28.39.38...33.24.35.34.37.28.39.38...33.24.35.34.37.38.39.30

%Y Cf. A264878.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 27 2015

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Last modified February 20 21:52 EST 2024. Contains 370219 sequences. (Running on oeis4.)