124249

Properties

Appears in sequences

• Primes of the form prime(n)^2 - prime(n+1) - 1.at n=29A097938
• Integers n such that p = 4n + 1, q = 4p + 3, r = 4q + 5, s = 4r + 7 and t = 4s + 9 are all prime.at n=12A243528
• Number of length n+2 0..3 arrays with the medians of every three consecutive terms nondecreasing.at n=7A250135
• a(n) = 1 + Sum_{k=0..n-2} binomial(n-2,k) * a(k) * a(n-k-2).at n=11A337187
• Prime numbersat n=11671