Number of (n+1) X (5+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0011 or 0101.

A259219

Number of (n+1) X (5+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0011 or 0101.

Terms

    a(0) =85a(1) =127a(2) =192a(3) =303a(4) =487a(5) =798a(6) =1325a(7) =2227a(8) =3784a(9) =6499a(10) =11283a(11) =19806a(12) =35161a(13) =63135a(14) =114656a(15) =210535a(16) =390703a(17) =732286a(18) =1385109a(19) =2641659a(20) =5075320a(21) =9814107a(22) =19083707a(23) =37286398a(24) =73147297a(25) =143988103a(26) =284244240a(27) =562450047a(28) =1115129719a(29) =2214450654

External references