A205047 - OEIS

A205047

Number of (n+1)X(n+1) 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock equal to the number in all its horizontal and vertical neighbors

81, 889, 23720, 1887956, 431904792, 262607365879, 419073553408284, 1751784239909853212, 19173955137464358777368, 549459537636022165057004892, 41223026576427780605245919759896, 8096934932275470672919813293695999680

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Diagonal of A205055

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=4

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

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

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