52289

Properties

Appears in sequences

• a(n) = floor(Sum_{m=1..n} Stirling2(n,m) / binomial(n-1,m-1)).at n=12A024422
• "DFK" (bracelet, size, unlabeled) transform of 1,2,3,4...at n=20A032216
• Denominators of continued fraction convergents to sqrt(935).at n=13A042809
• Primes p such that 2p+1, 4p+3, 6p+5 are all primes.at n=32A107020
• Sophie Germain primes in A154939.at n=29A154941
• Primes of the form n + sum of proper non-divisors of n.at n=34A192560
• G.f.: exp( Sum_{n>=1} (x^n/n) / Product_{d|n} (1 - d*x^n)^d ).at n=19A205488
• Primes of the form m*prime(m) + (m + 1)*prime(m + 1) + (m + 2)*prime(m + 2).at n=10A268465
• Primes that can be generated by the concatenation in base 7, in ascending order, of two consecutive integers read in base 10.at n=40A287308
• a(n) = [x^((n*(n+1)/2)^2)] Product_{k=1..n} Sum_{m>=0} x^(k*m^2).at n=7A321181
• Primes that are palindromic in factorial base.at n=36A333421
• Primes having only {2, 5, 8, 9} as digits.at n=32A386164
• Prime numbersat n=5345