27803

Properties

Appears in sequences

• Denominators of continued fraction convergents to sqrt(393).at n=14A041747
• Numbers n such that sum of first n consecutive prime numbers is pandigital (includes all 10 digits exactly once).at n=5A049442
• Larger prime in pair prime(k) +/- k for some k.at n=32A107637
• Primes p, with index k, such that p-k and p+k are both prime.at n=37A143794
• Primes p such that lcm(1,2,3,...,p-2,p-1,p) - 1 is prime.at n=25A154524
• Primes of the Form : p1=a*b+c;p2=a*c+b;p3=b*c+a;p=(p1+p2+p3)/2; p1,p2 and p3 are three consecutive prime numbers.at n=7A157722
• Number of nX6 0..2 arrays with no more than floor(nX6/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.at n=1A223124
• T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.at n=22A223126
• Number of 2Xn 0..2 arrays with no more than floor(2Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.at n=5A223127
• Numbers k such that the sum of the first k consecutive prime numbers is pandigital (includes all 10 digits at least once).at n=5A228468
• Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=15A252381
• Safe primes p such that p + 24 is also a safe prime.at n=22A274381
• Prime powers k such that lcm(1, 2, 3, ..., k)-1 is prime.at n=28A385564
• Prime numbersat n=3036