1306624

Appears in sequences

• a(n) = 4^(floor(n/2))+4^(floor(n/2)-1)-4^(floor((n-1)/3)).at n=18A170833
• a(n) = 4^(floor(n/2))+4^(floor(n/2)-1)-4^(floor((n-1)/3)).at n=19A170833
• p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^2)^3.at n=17A291013