Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 7 or 8 king-move adjacent elements, with upper left element zero.
A305583
Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =8a(2) =19a(3) =38a(4) =76a(5) =327a(6) =967a(7) =2641a(8) =8578a(9) =26437a(10) =78868a(11) =243583a(12) =747553a(13) =2276209a(14) =6972325a(15) =21347977a(16) =65257777a(17) =199664890a(18) =610944133a(19) =1868823559a(20) =5717250070a(21) =17491334971a(22) =53510023900a(23) =163701580426a(24) =500812768156
External references
- oeis: A305583