185535

Appears in sequences

• Let sigma_m (n) be result of applying sum-of-divisors function m times to n; call n (m,k)-perfect if sigma_m (n) = k*n; sequence gives the (3,k)-perfect numbers.at n=34A019292
• Number of walks of length n on square lattice, starting at origin, staying on points with x >= 0, y <= x.at n=10A060900
• Least number m having n divisors that are also suffixes of m in binary representation.at n=6A080948
• Numbers k such that k^2 +- k +- 1 is prime for all four possibilities.at n=26A236056
• Coefficients of mock modular form H_1^(4) (divided by 2).at n=22A256051
• Numbers k such that k and k+1 are both S-abundant numbers (A181487).at n=14A364861
• Number of chordless cycles (of length >= 4) in the complement of the n-middle layer graph.at n=3A364876
• Numbers k such that each of k and k+1 is either a practical number (A005153) or an almost practical number (A174533).at n=34A387654