124213

Properties

Appears in sequences

• Smallest nontrivial extension of n-th palindromic prime which is a prime.at n=25A030680
• Prime p1 of the form a^b - c^d = p1, where a, b, c, d are primes and a + b + c + d = p2, where p2 (A164062) is also prime.at n=14A164061
• a(n) = 9*n^3/2 - 21*n^2/2 + 8*n - 4.at n=29A232495
• G.f. A(x) satisfies: A(x) = x + A(x)^2 - R(A(x)^2) + sqrt( A(x)^2 - R(A(x)^2) ), where R(A(x)) = x, and A(x) = Sum_{n>=1} a(n)*x^n/2^A274715(n).at n=9A274714
• Primes that become palindromic primes when the least significant digit is deleted.at n=35A277206
• Prime numbersat n=11668