Number of nX2 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it, modulo 4.
A239041
Number of nX2 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it, modulo 4.
Terms
- a(0) =7a(1) =41a(2) =218a(3) =1187a(4) =6524a(5) =35683a(6) =194936a(7) =1065802a(8) =5827642a(9) =31860101a(10) =174181686a(11) =952284895a(12) =5206307168a(13) =28463699289a(14) =155615648162a(15) =850776208722
External references
- oeis: A239041