57780

Appears in sequences

• a(n) = round(n*phi^18), where phi is the golden ratio, A001622.at n=10A004953
• a(n) = ceiling(n*phi^18), where phi is the golden ratio, A001622.at n=10A004973
• Number of positions that are exactly n moves from the starting position in the Halpern-Meier Pyramid puzzle.at n=6A079746
• Exponential (2,4)-perfect numbers: numbers m such that esigma(esigma(m)) = 4m, where esigma(m) is the sum of exponential divisors of m (A051377).at n=27A328133