40813

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 5x + 2.at n=32A023283
• Numbers k such that the sum of the first k composite numbers is palindromic.at n=14A053779
• Fourth term of strong prime sextets: p(m-2)-p(m-3) > p(m-1)-p(m-2) > p(m)-p(m-1) > p(m+1)-p(m) > p(m+2)-p(m+1).at n=12A054816
• Primes of the form k^2 + 9.at n=25A138353
• Primes of the form n^2+number of divisors of n^2.at n=28A188665
• Prime numbers whose central digit equals the sum of the other digits.at n=28A235119
• Number of perfect squares in the half-open interval [Pi^(n-1), Pi^n).at n=20A306604
• Prime numbersat n=4272