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A258528
Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
1302500, 16010949, 106485657, 112691334, 288227428, 592438330, 1541134768, 5755957944, 16756864216, 56699546024, 199945154888, 715151389512, 2526239531720, 9750287865160, 35521705708488, 140976354999880
OFFSET
1,1
COMMENTS
Column 6 of A258530
LINKS
FORMULA
Empirical: a(n) = 4*a(n-1) +19*a(n-2) -78*a(n-3) -56*a(n-4) +224*a(n-5) +304*a(n-6) -1824*a(n-7) -1152*a(n-8) +36864*a(n-9) -19968*a(n-10) -157696*a(n-11) -151552*a(n-12) +688128*a(n-13) +655360*a(n-14) -2097152*a(n-15) +1048576*a(n-16) for n>26
EXAMPLE
Some solutions for n=1
..0..0..0..1..0..1..0..0....0..0..1..1..1..1..0..1....0..0..1..0..1..1..1..1
..0..0..0..0..0..1..1..1....1..0..0..0..0..1..1..0....0..0..0..1..0..0..1..1
..1..0..0..0..1..0..0..1....1..0..0..0..0..0..0..1....0..0..0..1..0..1..1..1
CROSSREFS
Sequence in context: A262531 A250830 A258535 * A254920 A002806 A216076
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 02 2015
STATUS
approved