57363

Appears in sequences

• a(n+1) is the smallest number > a(n) such that the digits of a(n)^2 are all (with multiplicity) contained in the digits of a(n+1)^2, with a(0)=1.at n=29A014563
• Concatenations C1 and C2 and C3 are all prime (see the comment lines).at n=11A034818
• For n > 1, a(n) is the smallest number such that n-th concatenation is prime and the smallest palindrome beginning with (but not equal to) this concatenation is also prime.at n=37A088090
• Semiprimes sp of the form p^2 + q + 1 where p and q are consecutive primes.at n=18A242243