69087

Appears in sequences

• a(n-1)*a(n-4) + a(n-2)*a(n-5) + a(n-3)*a(n-6), with a(k<6) = 1.at n=13A118330
• Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=8A299597
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=57A299602