

A233679


Number of (n+1)X(5+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 6


1



8712, 117744, 1500800, 25036784, 365293440, 6336415296, 95799636288, 1660462199232, 25500227965248, 438642994287168, 6806097080023872, 116152846851935808, 1816799517745700160, 30788724031193453120
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OFFSET

1,1


COMMENTS



LINKS



FORMULA

Empirical recurrence of order 99 (see link above)


EXAMPLE

Some solutions for n=2
..3..1..0..1..0..0....3..2..1..2..0..0....2..3..2..0..0..0....0..0..0..0..0..2
..2..2..0..2..2..1....1..2..3..2..1..2....1..1..2..1..2..1....1..2..1..2..1..1
..0..1..0..1..0..0....3..2..1..2..0..2....2..3..3..3..2..3....1..0..0..0..0..2


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



