67433

Properties

Appears in sequences

• Primes p such that 30*p-1, 30*p+1 and 36*p-1, 36*p+1 are twin primes.at n=8A138696
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) < d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=28A299640
• a(n) = Sum_{k=1..n-1} tau(k) * sigma_2(n-k).at n=37A374973
• Prime numbersat n=6718