53772

Appears in sequences

• Sums of 2 successive primes s = prime(m) + prime(m+1) such that all digits of s are primes.at n=35A173719
• Number of 5-step self-avoiding walks on an n X n square summed over all starting positions.at n=24A188150
• a(n) = gpf(a(n-3))*gpf(a(n-2)) + gpf(a(n-1)), with a(1)=a(2)=1 and a(3)=2 and where gpf(n) is the greatest prime dividing n, A006530(n).at n=46A258804