76131

Appears in sequences

• Numbers n such that there are exactly 4 primes p such that floor(n*log(n))+1<=p<=floor((n+1)*log(n+1))-1.at n=25A068362
• Floor of concatenation of n, n+1, n+2, n+3, n+4, n+5 divided by 6.at n=4A074996
• Nonsquarefree "year numbers" (numbers n such that phi(n) = 2*phi(sigma(n)): A137815).at n=6A137816