91381

Properties

Appears in sequences

• Primes of the form k^2 + prime(k) + 1.at n=24A063461
• Minimum number of identical bricks of length 1 which, when stacked without mortar in the naive way, form a stack of length >=n.at n=6A065071
• a(n) = 1 if a(n-1) is prime, else a(n) = a(n-2)+a(n-3); starting with a(0) = 0, a(1) = a(2) = 1.at n=56A142884
• Primes which are triangular numbers plus 3.at n=38A159047
• Primes p such that p+12, (p+1)/2, and (p+13)/2 are also prime.at n=27A283869
• Primes in A284798.at n=19A372770
• Prime numbersat n=8836