426409

Appears in sequences

• Squares of primes, with property that all even digits occur together and all odd digits occur together.at n=17A030481
• Numbers k such that sigma_4(k)/sigma_2(k) is prime.at n=32A066109
• Prime powers of prime numbers such that the sum of its digits is also prime power of prime number.at n=26A076705
• The smallest perfect square which is a sum of n consecutive primes.at n=27A132956
• Squares of tribonacci numbers A000213.at n=12A141583
• Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically.at n=8A208035
• Prime powers (A025475) representable as (p+q)/2, where p and q are distinct prime powers.at n=37A225388