213319

Properties

Appears in sequences

• Smallest prime with "n^3" as central digit(s).at n=11A084430
• Positive integers k for which 1 + 3*2^(k+2) divides the Fermat number 1 + 2^(2^k).at n=2A103477
• Number of triangular nXnXn 0..4 arrays with all rows and diagonals having the same length having the same sum, with corners zero.at n=5A195801
• T(n,k)=Number of triangular nXnXn 0..k arrays with all rows and diagonals having the same length having the same sum, with corners zero.at n=41A195805
• Number of triangular of a 6X6X6 0..n arrays with all rows and diagonals having the same length having the same sum, with corners zero.at n=3A195807
• Primes p such that 12*2^p + 1 is also prime.at n=5A383914
• Prime numbersat n=19075