A205828 - OEIS

A205828

Number of (n+1)X(n+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two

30, 630, 32106, 3875376, 1105752330, 745699860222, 1189207742465910, 4487032707620997018, 40071390912674727590454, 847234959807682079504883018, 42418662789019636446257162237448

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OFFSET

1,1

COMMENTS

Diagonal of A205836

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=4

..2..2..1..0..2....2..2..0..1..2....1..0..1..1..2....1..0..2..2..1

..1..0..2..1..0....1..0..1..2..1....2..1..0..2..1....0..2..1..0..2

..2..1..0..2..1....2..1..2..0..2....0..2..1..0..2....1..0..2..1..0

..1..0..2..1..0....0..2..0..2..0....2..1..0..1..0....2..1..0..2..1

..2..1..0..2..1....2..0..1..0..1....1..2..1..2..1....0..2..1..0..2

CROSSREFS

Sequence in context: A001719 A004359 A001777 * A353115 A136661 A264849

Adjacent sequences: A205825 A205826 A205827 * A205829 A205830 A205831

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2012

STATUS

approved