55855

Appears in sequences

• Near-repdigit semiprimes with 5 as repeated digit.at n=37A105986
• Number of distinct prime factors of the n-th odd Catalan number, A038003(n).at n=18A119861
• 4-step Fibonacci sequence starting with 0, 1, 1, 1.at n=19A251655
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 662", based on the 5-celled von Neumann neighborhood.at n=15A283602
• Numbers k with digits 5 and 8 only.at n=34A284381
• a(n) = 5*(10^(2*n+1)-1)/9 + 3*10^n.at n=2A332158