48413

Properties

Appears in sequences

• Smallest nontrivial extension of n-th square which is a prime.at n=21A030685
• Numerators of 6*((Sum_{k=1..n} 1/binomial(2*k,k)) - 1/3), n >= 1.at n=7A130547
• Centered 1729-gonal numbers.at n=7A130876
• Primes of the form k^2 + 13.at n=34A138375
• Primes arising in A144730.at n=3A144731
• Primes of the form 20n^2+8n+1.at n=19A154405
• The number of permutations of length n sortable by 2 block transpositions.at n=12A228392
• a(n) is the minimum positive integer m such that m * 2^(n + 2) + 1 is a prime number which does not divide ((F(n + 2) - 1)^m - 1)/(F(n + 2) - 2), where F(n) is the n-th Fermat number (A000215).at n=27A308695
• a(n) is the start of the first occurrence of exactly n consecutive zeroless primes (A038618).at n=37A384793
• Prime numbersat n=4981