Number of (n+1)X(4+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111.
A259246
Number of (n+1)X(4+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111.
Terms
- a(0) =111a(1) =581a(2) =2816a(3) =14425a(4) =71313a(5) =361728a(6) =1803859a(7) =9106657a(8) =45601304a(9) =229700941a(10) =1152550829a(11) =5799573000a(12) =29129216479a(13) =146507741197a(14) =736226561792
External references
- oeis: A259246