40754

Appears in sequences

• Smallest number k such that k and k+1 have n and n+1 distinct prime divisors.at n=4A079482
• Sum of the squares of the quadratic residues of prime(n).at n=19A125613
• Numbers k such that k and k+1 have at least 4 but not both exactly 4 distinct prime factors.at n=1A321494
• Number of compositions of n with runs-resistance equal to cuts-resistance minus 1.at n=20A329869
• Numbers k such that both k and k+1 are Zeckendorf-Niven numbers (A328208) and lazy-Fibonacci-Niven numbers (A328212).at n=4A330713
• Numbers k such that k^2, (k+1)^2 and (k+2)^2 are all abundant numbers.at n=13A383391