A202716 Number of 4X4 0..n arrays with row sums equal and no column sum equal to the previous

838, 173860, 7788648, 147823100, 1631287078, 12388736288, 71598143176, 335967493328, 1337851154982, 4665608624084, 14584276374720

Offset

1,1

Comments

Row 4 of A202714

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Sequence in context: A177846 A167603 A284187 * A118380 A351671 A135639

Adjacent sequences: A202713 A202714 A202715 * A202717 A202718 A202719

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved