A232292 Number of nX5 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.

33, 3615, 336079, 31119789, 2885285507, 267483142619, 24797475083765, 2298890419506403, 213122398219612007, 19757860629284815473, 1831684796948684817831, 169809336055727719993459

Offset: 1

Author

R. H. Hardin, Nov 22 2013

Keywords

• nonn

Comments

Column 5 of A232295

Examples

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

Links

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

Formula

Empirical: a(n) = 77*a(n-1) +1414*a(n-2) +4190*a(n-3) -25759*a(n-4) -74189*a(n-5) +246122*a(n-6) -20486*a(n-7) -1442713*a(n-8) +3110141*a(n-9) -347652*a(n-10) -624656*a(n-11) +210492*a(n-12) -18900*a(n-13) for n>14