A251041 Number of (4+1)X(n+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction

19112, 304421, 3396593, 32439684, 267606254, 2010619868, 13920865807, 90738782195, 561837367031, 3339244059773, 19167924686205, 106885763109764, 581385192865977, 3095733314978369, 16181595154241124, 83226682012389566

Offset

1,1

Comments

Row 4 of A251037

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 98

Formula

Empirical recurrence of order 98 (see link above)

Example

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

Crossrefs

Sequence in context: A031643 A261748 A089522 * A234724 A237554 A263024

Adjacent sequences: A251038 A251039 A251040 * A251042 A251043 A251044

Keyword

nonn

Author

R. H. Hardin, Nov 29 2014

Status

approved