A233914 - OEIS

A233914

Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.

36976, 807964, 15981048, 369978404, 7752002928, 179779430264, 3816435022128, 88174304365260, 1882101558915232, 43329895764737680, 928159189164216848, 21305336764584666304, 457639958123218639480, 10478566423139329437168

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

OFFSET

1,1

COMMENTS

Column 5 of A233917.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1:

..6..7..3..7..3..1....1..0..4..0..4..0....6..2..6..2..3..2....0..2..6..5..2..5

..2..5..2..4..2..5....5..2..5..3..2..3....4..5..4..5..7..5....4..1..4..1..0..1

CROSSREFS