51929

Properties

Appears in sequences

• Numbers n such that Lucas(prime(n)) is prime, where Lucas = A000032.at n=55A120561
• Primes p such that Lucas(prime(p)) is prime, where Lucas = A000032.at n=10A123677
• Primes that become squares when prefixed with an 8.at n=7A167741
• T(j,k) are the numerators u in the representation R = s/t + (2*sqrt(3)/Pi)*u/v of the resistance between two nodes separated by the distance (j,k) in an infinite triangular lattice of one-ohm resistors, where T(j,k), j >= 0, 0 <= k <= floor(j/2) is an irregular triangle read by rows.at n=13A355587
• Prime numbersat n=5313