A235746 Number of (n+1)X(4+1) 0..3 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise

343500, 102505743, 30537258362, 8031688723354, 2069114938398467, 491993262003115868, 113614326768833012108, 24828063912342663708246, 5259250889254763921751567, 1069553524153578383939573838

Offset

1,1

Comments

Column 4 of A235747

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

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

Crossrefs

Sequence in context: A306796 A365611 A029568 * A235505 A235668 A235664

Adjacent sequences: A235743 A235744 A235745 * A235747 A235748 A235749

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved