185895

Appears in sequences

• Odd numbers divisible by exactly 9 primes (counted with multiplicity).at n=18A046322
• Factorial splitting: write n! = x*y*z with x<y<z and x maximal and z is minimal; sequence gives value of y.at n=15A061031
• a(n) = 3*a(n-1) + 18*a(n-2), a(0)=0, a(1)=1.at n=8A080424
• Numbers that are equal to the arithmetic derivative of their cototient.at n=10A248817
• Factorial splitting: write n! = x*y*z with x <= y <= z and minimal z-x; sequence gives value of y.at n=18A355190