121015

Appears in sequences

• a(n) = floor(n*phi^20), where phi is the golden ratio, A001622.at n=8A004935
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Fibonacci numbers), t = A014306.at n=47A024467
• s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = A014306.at n=46A025087
• Numbers that have 12 terms in their Zeckendorf representation.at n=5A179252