30181

Properties

Appears in sequences

• a(n) = n + max{ a(i)*a(n-i) ; 1 <= i <= n-1 }, a(n) = n for n <= 2.at n=17A054253
• Let n range through the odd numbers skipping multiples of 5; a(n) = n-th prime ending in n.at n=32A089779
• Primes p such that p^3-p-+1 are twin primes.at n=35A158295
• Primes p such that 5*p+2, 7*p+4 and 11*p+6 are also prime.at n=31A173880
• Numbers n such that n!8 + 2 is prime.at n=53A204663
• Primes p such that p = 361 + 420*k for some k.at n=30A217656
• Values k(i) such that k(i) + k(i+3) = k(i+1) + k(i+2), where k(i) is A022885(i).at n=14A235725
• Primes p such that the decimal expansion of its base 7 expansion converted to decimal is a square.at n=15A241246
• Number of partitions p of n such that (number of even numbers in p) > (number of odd numbers in p).at n=46A241640
• Primes p such that A001175(p) = (p-1)/6.at n=35A308791
• Numbers that are palindromes in primorial base.at n=44A333423
• Primes that are palindromes in primorial base.at n=16A333424
• a(n) is the number of squarefree semiprimes <= 2^n.at n=17A358078
• Prime numbersat n=3264