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 A264344 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,1 or 1,2. 1

%I #4 Nov 11 2015 19:46:25

%S 32,987,49000,1399783,53429620,1855980772,67833964762,2424688746359,

%T 87826990190824,3164364890450187,114329873155945874,

%U 4126859698045051896,149032951757557392004,5381261860217202123333,194318967652718474091224

%N Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,1 or 1,2.

%C Row 4 of A264341.

%H R. H. Hardin, <a href="/A264344/b264344.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..1..0..2..3....1..0..3..2....0..7..2..3....1..0..2..3....1..7..2..3

%e ..4..5..6..7....4..6..5..7....5..4..6..1...10..5..7..6....4..5..0..6

%e ..8..9.10.11...14..9.11.10....8..9.10.11....8..9..4.11....8.10..9.11

%e .12.13.14.15...12.19..8.15...12.13.15.14...13.19.14.15...12.13.14.15

%e .16.17.18.19...17.16.18.13...17.16.18.19...16.17.12.18...16.17.19.18

%Y Cf. A264341.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 11 2015

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Last modified September 17 20:40 EDT 2024. Contains 375990 sequences. (Running on oeis4.)