A202928 Number of n X 5 0..2 arrays with adjacent row and column sums unequal.

48, 17508, 4439916, 1032147416, 231197740500, 50721408178292, 10983388813793312, 2357485779036582768

Offset

1,1

Comments

Column 5 of A202931.

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Cf. A202931.

Sequence in context: A307618 A225786 A275454 * A265866 A159425 A232375

Adjacent sequences: A202925 A202926 A202927 * A202929 A202930 A202931

Keyword

nonn

Author

R. H. Hardin, Dec 26 2011

Status

approved