66520

Appears in sequences

• Numbers whose base-3 representation has exactly 11 runs.at n=20A043591
• 3-apexes of Omega: numbers k such that Omega(k-3) < Omega(k-2)< Omega(k-1) < Omega(k) > Omega(k+1) > Omega(k+2) > Omega(k+3), where Omega(m) = the number of prime factors of m, counting multiplicity.at n=16A076760
• Number of partitions of n such that the least part occurs with even multiplicity.at n=47A096374
• Expansion of Sum_{k>=0} x^k * Product_{j=1..k} (1 + x^j)^j.at n=28A306731