234009

Appears in sequences

• a(n) = 3^(floor(n/2))+3^(floor(n/2)-1)-3^(floor((n-1)/3)).at n=20A170832
• a(n) = 3^(floor(n/2))+3^(floor(n/2)-1)-3^(floor((n-1)/3)).at n=21A170832