70664

Appears in sequences

• Numbers that are values of the totient function (A002202) but not of the reduced totient function (A002174).at n=22A270265
• 1/4 of the number of paths that are made of alternate vertical and horizontal 4*n consecutive prime (> 2 and < prime(4*n+2)) steps. (Each path begins and ends at the same point but is allowed to intersect itself.)at n=8A292700
• Primitive terms of A388271.at n=37A388272