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 A264882 Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,1 0,-1 -2,0 or 1,1. 1

%I #4 Nov 27 2015 07:37:52

%S 3,0,56,36,3613,22400,356692,3303808,37498613,378705540,3968118198,

%T 40855251236,419847061269,4338625113664,44432810271640,

%U 458593963707000,4699321892473274,48406074363574612,496575268524702592

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

%C Row 5 of A264878.

%H R. H. Hardin, <a href="/A264882/b264882.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e .10..2..3..4.14....1..2..3..4.14....1..2..3..4.14...10..2.12..4.14

%e .15..0..1..9.19....6..0.17..9.19....6..0..8..9.19....6..0..1..9..3

%e .20..5..6..7..8...20..5.22..7..8...11..5.13..7.24...20..5.22..7..8

%e .25.17.11.12.13...25.10.11.12.13...25.10.27.12.29...25.17.11.19.13

%e .21.22.16.24.18...21.15.16.24.18...21.15.16.17.18...21.15.16.24.18

%e .26.27.28.29.23...26.27.28.29.23...26.20.28.22.23...26.27.28.29.23

%Y Cf. A264878.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 27 2015

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Last modified September 18 11:53 EDT 2024. Contains 376000 sequences. (Running on oeis4.)