44844

Appears in sequences

• a(n) = smallest palindrome > a(n-1) such that a(1)*a(2)*...*a(n) + 1 is prime with a(1) = 2.at n=31A051896
• a(n) = smallest palindrome > a(n-1) such that a(1)*a(2)*...*a(n) - 1 is a prime.at n=38A051954
• Palindromic numbers such that the sum of the digits equals the number of divisors.at n=22A263720
• Numbers with digits 4 and 8 only.at n=34A284972
• G.f.: Sum_{n>=0} x^n * (x^(n+1) + i)^n / (1 + i*x^(n+1))^(n+1).at n=59A324300
• a(n) = 4*(10^(2*n+1) - 1)/9 + 4*10^n.at n=2A332148
• Palindromes that can be written in more than one way as the sum of two distinct palindromic primes.at n=37A356854