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A255038
Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the central row and central column minus the two minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
10732, 33778, 100001, 246173, 566341, 1217347, 2396285, 4226143, 7066617, 11417001, 18388843, 28246205, 42295775, 63059893, 93546123, 134980535, 194632219, 278263361, 398834655, 565053129, 797602403, 1121777705, 1596708825
OFFSET
1,1
COMMENTS
Row 3 of A255036
LINKS
FORMULA
Empirical: a(n) = 4*a(n-1) -7*a(n-2) +11*a(n-3) -12*a(n-4) -2*a(n-5) +18*a(n-6) -41*a(n-7) +82*a(n-8) -88*a(n-9) +80*a(n-10) -63*a(n-11) -30*a(n-12) +92*a(n-13) -124*a(n-14) +185*a(n-15) -157*a(n-16) +144*a(n-17) -165*a(n-18) +104*a(n-19) -82*a(n-20) +46*a(n-21) +46*a(n-22) -84*a(n-23) +136*a(n-24) -180*a(n-25) +152*a(n-26) -112*a(n-27) +64*a(n-28) -16*a(n-29) for n>47
EXAMPLE
Some solutions for n=3
..1..1..0..1..0....0..1..1..1..0....0..0..0..0..1....1..0..0..0..0
..0..0..0..0..0....1..0..0..0..0....1..0..0..1..0....0..0..0..0..0
..0..0..1..0..0....0..0..1..1..1....1..1..1..1..0....0..0..0..0..1
..1..0..0..1..1....0..1..1..0..1....1..1..1..0..1....0..0..1..0..1
..0..1..1..1..0....0..1..1..1..0....0..0..1..1..0....0..1..0..0..1
CROSSREFS
Sequence in context: A184603 A247854 A117090 * A255031 A256949 A146320
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 13 2015
STATUS
approved