220790480

Appears in sequences

• a(n) = Sum_{k <= n/2 } binomial(n-2k, 3k+1).at n=38A137357
• Number of compositions of 5*n-4 into parts 3 and 5.at n=23A369848
• a(n) = Sum_{k=0..floor(2*n/3)} binomial(2*k,2*n-3*k).at n=29A392428