50579

Appears in sequences

• Numbers k such that 4*10^k+9 is prime.at n=12A101394
• Expansion of 1/(1 - 37*x + x^2).at n=3A206565
• n for which A079277(n) + phi(n) < n.at n=28A208815
• Smaller of two consecutive semiprimes which are anagrams of each other.at n=22A228135
• Number of third differences of arrays of length 5 of numbers in 0..n.at n=37A228261
• Semiprimes of the form n^3 - 2*n.at n=7A240436
• a(n) = n^3 - 2*n.at n=37A242135
• Composite numbers k such that the sum of their aliquot parts divides k+1.at n=15A306532
• Non-prime-powers k at which the variance of the first differences of the logarithms of the divisors of k, scaled by log(k), reaches a new minimum.at n=15A323729