Number of nX3 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero.

A304005

Number of nX3 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =7a(2) =13a(3) =21a(4) =27a(5) =53a(6) =99a(7) =197a(8) =371a(9) =713a(10) =1365a(11) =2645a(12) =5105a(13) =9857a(14) =19079a(15) =36861a(16) =71379a(17) =138165a(18) =267465a(19) =518201a(20) =1003521a(21) =1944649a(22) =3767939a(23) =7302057a(24) =14153291a(25) =27432325a(26) =53179669a(27) =103092661a(28) =199871009a(29) =387518385

External references