Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.
A240267
Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.
Terms
- a(0) =10a(1) =35a(2) =118a(3) =582a(4) =2000a(5) =8353a(6) =37422a(7) =135463a(8) =580528a(9) =2403439a(10) =9094559a(11) =38858731a(12) =155489063a(13) =610603047a(14) =2566277060a(15) =10164936522a(16) =40839681679a(17) =168734662196a(18) =669445744507
External references
- oeis: A240267