Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
A298226
Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =16a(2) =17a(3) =195a(4) =490a(5) =2606a(6) =15646a(7) =74688a(8) =397909a(9) =2172360a(10) =11380566a(11) =60631430a(12) =325152997a(13) =1728286947a(14) =9215894735a(15) =49218645591a(16) =262327473375
External references
- oeis: A298226