Number of nX5 0..1 arrays with every element unequal to 0, 1, 3 or 5 king-move adjacent elements, with upper left element zero.

A303966

Number of nX5 0..1 arrays with every element unequal to 0, 1, 3 or 5 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =53a(2) =54a(3) =173a(4) =452a(5) =1014a(6) =2247a(7) =5247a(8) =11995a(9) =27818a(10) =65183a(11) =151096a(12) =349718a(13) =812569a(14) =1885211a(15) =4372093a(16) =10150580a(17) =23557507a(18) =54656120a(19) =126843786a(20) =294365563a(21) =683067821a(22) =1585148651a(23) =3678564016a(24) =8536369009a(25) =19809524756a(26) =45970295904

External references