38507

Appears in sequences

• Indices of primes in sequence defined by A(0) = 19, A(n) = 10*A(n-1) - 21 for n > 0.at n=16A102025
• n+phi(n)+phi(phi(n)) is a cube.at n=26A116042
• Number of non-equivalent binary n X n matrices with two nonadjacent 1's.at n=27A232567