492871

Properties

Appears in sequences

• Number of 6k+1 primes (A002476) in range ]2^n,2^(n+1)].at n=23A095015
• Number of unimodal maps [1..n]->[0..3].at n=24A223659
• a(n) = Sum_{k=0..floor(n/2)} binomial(5*n-2*k-1,n-2*k).at n=6A371753
• Prime numbersat n=40981