A229391 Number of nX7 0..3 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X8 0..1 array.

6528, 4346752, 1353901580, 358453456908, 93250181644300, 24062262212427788, 6184286713271025676, 1586293889549249544204, 406490146565253022875660, 104112538108301161330114572, 26659345510937391379492372492

Offset: 1

Author

R. H. Hardin Sep 21 2013

Keywords

• nonn

Comments

Column 7 of A229392

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..99

Formula

Empirical: a(n) = 385*a(n-1) -33152*a(n-2) +33024*a(n-3) -98560*a(n-4) +8486912*a(n-5) -8388608*a(n-6) for n>9