Number of n X 3 0..1 arrays with every element equal to 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A299583

Number of n X 3 0..1 arrays with every element equal to 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =4a(2) =1a(3) =8a(4) =12a(5) =31a(6) =117a(7) =263a(8) =689a(9) =1977a(10) =5034a(11) =13497a(12) =36675a(13) =96801a(14) =258990a(15) =694840a(16) =1851440a(17) =4950051a(18) =13241884a(19) =35365083a(20) =94528266a(21) =252701451a(22) =675271071a(23) =1804830952a(24) =4824041591a(25) =12892622434a(26) =34458237926a(27) =92097864532a(28) =246147029176

External references