A202930 Number of nX7 0..2 arrays with adjacent row and column sums unequal

192, 872940, 2247406834, 5108912536716, 10983388813793312

Offset

1,1

Comments

Column 7 of A202931

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A203490 A008698 A282541 * A300848 A340352 A012856

Adjacent sequences: A202927 A202928 A202929 * A202931 A202932 A202933

Keyword

nonn

Author

R. H. Hardin Dec 26 2011

Status

approved