46237

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 20.at n=9A031608
• Primes of the form k^2 + 12.at n=32A138368
• a(n) = 13 + Sum_{j=4..n+3} j!.at n=5A147615
• Primes of the form 10n^2 - 3.at n=18A201962
• Number of length n+3 0..2 arrays with no four elements in a row with pattern aabb (with a!=b) and new values 0..2 introduced in 0..2 order.at n=8A242578
• T(n,k)=Number of length n+3 0..k arrays with no four elements in a row with pattern aabb (with a!=b) and new values 0..k introduced in 0..k order.at n=53A242584
• Partial sums of A299257.at n=39A299263
• Prime-indexed primes q such that prime(q)-q-1 is a prime indexed prime.at n=20A318751
• Prime numbersat n=4783