37871

Properties

Appears in sequences

• Primes of the form (prime(prime(k)) + prime(prime(k+1)))/2.at n=27A098042
• G.f. satisfies: A(x) = 1 + x*A(x)/(1 - x^2*A(x)^2).at n=13A101785
• Prime septets of form k, k+2100, k+4200, k+6300, k+8400, k+10500, k+12600.at n=29A123107
• Triangle read by rows: T(n,k) is the number of Dyck n-paths containing k even-length ascents (0 <= k <= floor(n/2)).at n=49A143950
• a(1)=1, a(2)=2, a(3)=3, a(n) = ceiling(sqrt(a(n-1)*a(n-2)*a(n-3))), n>3.at n=13A258967
• Number of partitions of [n] whose block minima sum to k, where k is chosen so as to maximize this number.at n=11A365903
• Prime numbersat n=4005