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 A264473 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,1 1,0 2,1 or -1,-1. 1

%I #4 Nov 14 2015 15:35:12

%S 1,17,57,456,3540,24773,174927,1262270,8905776,63373156,449506816,

%T 3184860720,22596207841,160137303788,1135302681211,8048142435691,

%U 57049038241053,404414221946254,2866733296182372,20321383697508618

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

%C Column 5 of A264476.

%H R. H. Hardin, <a href="/A264473/b264473.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A264473/a264473.txt">Empirical recurrence of order 84</a>

%F Empirical recurrence of order 84 (see link above)

%e Some solutions for n=4

%e ..7..0..1.10.11..4....7..8..1.10..3..4....7..0..1.10.11..4....7..0..9.10..3..4

%e .13..6..2..3..9..5....0..6..2.16.17..5...13.14..2..3.17..5...13.14.15..8.17..5

%e .19.12..8.22.23.16...19.12.21..9.23.11...19.20.21..9.23.16....6.20..1..2.23.11

%e .25.26.14.15.29.17...25.13.14.15.29.22...12..6.27..8.29.22...12.26.19.28.29.22

%e .18.24.20.21.27.28...18.24.20.26.27.28...18.24.25.26.15.28...18.24.25.21.27.16

%Y Cf. A264476.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 14 2015

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Last modified December 1 07:48 EST 2023. Contains 367468 sequences. (Running on oeis4.)