38993

Properties

Appears in sequences

• Fibonacci sequence beginning 5, 12.at n=18A022137
• Smallest number that can be made to take n steps to reach 0 under "k -> any product of 2 numbers whose concatenation is k".at n=26A035934
• n-th occurrence of gap of n between primes occurs at prime a(n), n even, n >= 2.at n=12A054587
• Numbers k such that 53^k - 52^k is a prime.at n=8A062619
• Where records occur in A118522.at n=18A118524
• Primes p such that q-p = 26, where q is the next prime after p.at n=25A124594
• a(n) is the largest prime < 12*a(n-1) for n > 1, with a(1) = 2.at n=4A126040
• Primes p such that the smallest integer whose sum of decimal digits is p is prime.at n=28A129990
• Primes of the form 3n^2 + 5.at n=28A201478
• Primes p such that q=p^2+p+1 is prime and (q^2+q+1)/3 is prime.at n=43A322748
• Primes obtained by interpreting the decimal representation of a prime p in base q, where q is the prime before p.at n=7A337872
• Primes p such that neither g-1 nor g+1 is prime, where g is the gap from p to the next prime.at n=39A355485
• Primes having only {3, 8, 9} as digits.at n=27A385792
• Prime numbersat n=4107