A202927 Number of nX4 0..2 arrays with adjacent row and column sums unequal

24, 2444, 194636, 14394092, 1032147416, 72961197604, 5108912536716, 355319989467096, 24594054479225084, 1696354402524087764, 116689792549722046964, 8009869338667569120504, 548878921109534525040696

Offset

1,1

Comments

Column 4 of A202931

Links

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

Example

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

Crossrefs

Sequence in context: A054005 A107675 A173115 * A354106 A336864 A008977

Adjacent sequences: A202924 A202925 A202926 * A202928 A202929 A202930

Keyword

nonn

Author

R. H. Hardin Dec 26 2011

Status

approved