login
A257189
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally
14
512, 2642, 2642, 10285, 10925, 10285, 39891, 47283, 44795, 39891, 160753, 220126, 252288, 213631, 160753, 639228, 1006996, 1488364, 1661786, 991554, 639228, 2462249, 4613955, 9058784, 12941212, 10392884, 4507765, 2462249, 9299264
OFFSET
1,1
COMMENTS
Table starts
.....512.....2642......10285.......39891........160753.........639228
....2642....10925......47283......220126.......1006996........4613955
...10285....44795.....252288.....1488364.......9058784.......57766489
...39891...213631....1661786....12941212.....106574293......916707473
..160753...991554...10392884...108242033....1168362160....13584142368
..639228..4507765...65770496...895883809...13043226591...209357338632
.2462249.20935219..429271992..7678171235..151536930267..3329338589296
.9299264.97650228.2786976155.65710359362.1739514241158.52183619444529
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 33] for n>38
Empirical for row n:
n=1: [same linear recurrence of order 33] for n>38
EXAMPLE
Some solutions for n=2 k=4
..1..0..0..1..0..0....0..1..0..0..0..0....1..0..1..0..1..0....0..0..0..0..0..0
..0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..0..0..1....1..0..0..0..1..1
..0..0..0..1..1..0....1..1..1..0..0..1....0..0..0..0..0..0....1..1..1..0..1..1
..0..0..0..1..1..1....1..0..0..0..0..0....0..0..1..1..1..0....0..0..1..1..0..0
CROSSREFS
Column 1 and row 1 are A254982
Sequence in context: A254775 A254728 A254721 * A254989 A254982 A258511
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 17 2015
STATUS
approved