82087

Appears in sequences

• Quasi-Carmichael numbers to base 7: squarefree composites n such that (n,2*3*5) = 1 and prime p|n ==> p-7|n-7.at n=9A029556
• Partial sums of A299285.at n=31A299286
• Numbers k such that phi(2k+1) = phi(2k+2).at n=20A308378