Number of nX3 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.
A240317
Number of nX3 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.
Terms
- a(0) =4a(1) =18a(2) =172a(3) =866a(4) =7326a(5) =35042a(6) =291982a(7) =1387224a(8) =11520638a(9) =54650290a(10) =453546794a(11) =2150825840a(12) =17847352698a(13) =84630769202a(14) =702236000852
External references
- oeis: A240317