168151

Properties

Appears in sequences

• n-th occurrence of gap of n between primes occurs at prime a(n), n even, n >= 2.at n=20A054587
• a(n) = floor(9^n/2^n).at n=8A094971
• Number of walks of length n between two nodes at distance 2 in the cycle graph C_9.at n=18A095367
• Floor((5n+1/n)^n).at n=3A197325
• a(n) = round((5*n+1/n)^n).at n=3A197978
• a(n) = floor((n + 1/2)^8).at n=4A219091
• a(n) = floor(3^n/n^2).at n=15A230664
• a(n) = Sum_{k=0..floor(n/9)} binomial(n,9*k).at n=20A306860
• a(n) = (5^(2*n) + 3*2^(5*n-2))/7.at n=3A386394
• Prime numbersat n=15350