A235650 Number of (n+1)X(2+1) 0..3 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise

2272, 75176, 2723053, 63898897, 1494414258, 26134209539, 455581431165, 6406214756041, 89887090918670, 1064493306802318, 12586134344284850, 129441171852288472, 1329548683623300725, 12136852429775201010

Offset

1,1

Comments

Column 2 of A235652

Links

R. H. Hardin, Table of n, a(n) for n = 1..179

Example

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

Crossrefs

Sequence in context: A251493 A235519 A235522 * A059466 A260206 A349941

Adjacent sequences: A235647 A235648 A235649 * A235651 A235652 A235653

Keyword

nonn

Author

R. H. Hardin, Jan 13 2014

Status

approved