49279

Properties

Appears in sequences

• Primes of form k^2 - 5.at n=42A028877
• Numbers k that divide the alternating sum sigma(1) - sigma(2) + sigma(3) - sigma(4) + ... + ((-1)^(k+1))*sigma(k).at n=14A067931
• Smaller of two consecutive primes which are anagrams of each other.at n=15A069567
• Primes which are the sum of the first k odd primes for some k.at n=13A071151
• List of Ormiston prime pairs.at n=30A072274
• Smallest prime that is the sum of prime(n) consecutive primes.at n=32A082277
• Primes whose 10's complement is a triangular number.at n=24A082992
• Smaller prime p in Ormiston pairs (p, q) with q - p = 18.at n=13A163678
• Duplicate of A163678.at n=13A175517
• Primes of the form 9n^2 - 5.at n=15A201960
• Smaller of two consecutive primes whose product of digits is equal and nonzero.at n=20A230083
• Smallest of five consecutive primes in arithmetic progression with common difference 90 and equal digit sums.at n=28A253232
• Number of (7+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=18A254913
• Prime numbersat n=5065