A254842 Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally and vertically

99200, 298165, 638688, 1308339, 2423232, 4446577, 7695684, 12905204, 20980412, 33267336, 51310904, 77549876, 114597984, 166682180, 238409204, 336506320, 467845476, 644609964, 878393644, 1187504908, 1588019180, 2115967840

Offset

1,1

Comments

Column 5 of A254845

Links

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

Formula

Empirical: a(n) = 8*a(n-1) -28*a(n-2) +56*a(n-3) -62*a(n-4) -8*a(n-5) +196*a(n-6) -440*a(n-7) +543*a(n-8) -320*a(n-9) -224*a(n-10) +832*a(n-11) -1112*a(n-12) +896*a(n-13) -448*a(n-14) +128*a(n-15) -16*a(n-16) for n>43

Example

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

Crossrefs

Sequence in context: A234494 A255760 A255753 * A339936 A348275 A138732

Adjacent sequences: A254839 A254840 A254841 * A254843 A254844 A254845

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved