37538

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 22.at n=10A031610
• a(n) = 2*prime(n)^2.at n=32A079704
• a(1)=2. a(n) is the a(n-1)st integer from among those positive integers coprime to a(n-1).at n=22A126882
• 2*p^2, for p an odd prime.at n=31A143928
• Number of 0..n arrays x(0..3) of 4 elements with nondecreasing average value and 0..n occur with instance counts within one of each other.at n=23A200943
• Beach-Williams Pell numbers of type 2pq (p,q primes).at n=10A212075
• Where records occur in A070138.at n=33A298942
• Integers n such that the digit set of n^2 is {0,1,4,9}.at n=35A317579
• Numbers k such that p^2 divides k, where p = A006530(k), the largest prime factor of k, and sigma(k) does not have any prime factor larger than p.at n=39A336354
• Number of 4 element sets of distinct integer sided rectangles that fill an n X n square.at n=41A387171