51133

Properties

Appears in sequences

• Primes such that the sum of the squares of its digits is equal to the product of its digits.at n=9A067779
• Primes with all odd digits such that the next three primes also contain all odd digits.at n=31A068831
• Numbers prime(k) such that A068863(k) = prime(k).at n=26A068868
• Duplicate of A068868.at n=26A085136
• Primes of the form 2m*691 - 1.at n=10A134671
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 2X2 block with tail 1,1 1,2 1,3 2,2 2,3 in any orientation.at n=9A146047
• Primes p containing the string "13" and sum of digits sod(p) = 13.at n=34A175017
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero.at n=18A304128
• k such that 0 = Sum_{j=1..k} A373223(k, j). The indices of the rows in Gauss's triangle with vanishing row sums.at n=42A373181
• Prime numbersat n=5232