Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4.
A240429
Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4.
Terms
- a(0) =4a(1) =24a(2) =206a(3) =970a(4) =8084a(5) =38406a(6) =319164a(7) =1514122a(8) =12567490a(9) =59600672a(10) =494581142a(11) =2345296116a(12) =19460591828a(13) =92279623108a(14) =765699669972
External references
- oeis: A240429