85963

Appears in sequences

• Indices of primes in sequence defined by A(0) = 39, A(n) = 10*A(n-1) - 31 for n > 0.at n=16A101838
• Members of a pair (m,n) such that sigma(m) = sigma(n) = sigma(n-m), m < n where sigma = A000203.at n=37A239939