54493

Properties

Appears in sequences

• Primes with 4 distinct digits that remain prime (no leading zeros allowed) after deleting all occurrences of its digits d.at n=12A057880
• Numbers k such that (31^k - 1)/30 is prime.at n=5A128002
• Beginnings of maximal chains of primes with four members (three links).at n=16A152867
• A proximate-prime polynomial sequence generated by 2*n^2 - 2*n + 53089.at n=26A155557
• Number of 3D matrices with positive integer entries such that sum of all entries equals n.at n=13A159297
• Primes of form a^2+b^2 such that a^4+b^4 and a^8+b^8 are primes.at n=36A182313
• Primes p in prime triples (p, p+4, p+6) at the end of the maximal gaps in A201596.at n=17A233435
• G.f. A(x) satisfies: A(x) = Product_{k>=1} 1/(1 - k*x^k*A(x)^k).at n=8A301577
• Primes p such that p+4, 3*p+4 and 3*p+8 are also prime.at n=25A352170
• Prime numbersat n=5543