38377

Properties

Appears in sequences

• Number of permutations of length n that avoid the patterns 132, 4321.at n=27A116701
• Prime numbers p such that p +- ((p-1)/6) are primes.at n=39A137724
• Primes p such that 8*p^2-2*p-1 divides Fibonacci(p).at n=30A159231
• Smallest m such that the period of the continued fraction of sqrt(m) is A215485(n); records of A013646.at n=28A215508
• a(n) = 1 + Sum_{k=1..n} binomial(n,k) * sigma(k).at n=11A222115
• Number of partitions p of n such that (number of even numbers in p) >= (number of odd numbers in p).at n=44A241639
• Primes having only {3, 7, 8} as digits.at n=33A260381
• Smallest prime starting a sequence of 4 consecutive odd primes such that the center of the symmetrical gaps is 2n.at n=18A263171
• Dirichlet self-convolution of the integer partition numbers A000041.at n=36A323764
• Primes p such that p+A003132(p),(p+A003132(p))+A003132(p+A003132(p)), p-A003132(p), and (p-A003132(p))-A003132(p-A003132(p)) are prime.at n=0A342960
• G.f.: Sum_{k>=0} x^(k*(k+1)) * Product_{j=1..k} 1/(1 - x^j)^3.at n=29A376708
• First member of the least set of 5 consecutive primes such that the sum of each pair of consecutive primes in this set is a multiple of n.at n=8A382700
• First member of the least set of 5 consecutive primes such that the sum of each pair of consecutive primes in this set is a multiple of n.at n=17A382700
• Prime numbersat n=4051