Number of 3Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4.
A240297
Number of 3Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the 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) =1322a(4) =9970a(5) =63892a(6) =459420a(7) =2983714a(8) =21011004a(9) =138067258a(10) =960196414a(11) =6366988610a(12) =43918588986a(13) =293115852448
External references
- oeis: A240297