322573

Properties

Appears in sequences

• Triangle read by rows: row n (n>=2) gives a set of n primes such that the averages of all subsets are distinct primes, having the smallest largest element.at n=10A113833
• Lesser of emirps (pairs) with only prime digits (A128388).at n=19A133554
• Emirps using only and all of the prime digits 2,3,5,7.at n=14A137836
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, 1, -1), (0, 1, 1), (1, -1, 1), (1, 0, 1)}.at n=9A150861
• Smallest n-digit emirp with only prime digits.at n=4A177513
• Square array T(n,k), n>0 and k>0, read by antidiagonals in ascending order, giving the smallest n*k-digit number that, if arranged in an n X k matrix, form k-digit reversible prime in each row and n-digit reversible prime in each column, or -1 if no such number exists.at n=15A375171
• Square array T(n,k), n>0 and k>0, read by antidiagonals in ascending order, giving the smallest n*k-digit number that, if arranged in an n X k matrix, form k-digit reversible prime in each row and n-digit reversible prime in each column, or -1 if no such number exists.at n=20A375171
• Smallest n-digit reversible prime with only prime digits.at n=5A375261
• Prime numbersat n=27815