41737

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 37.at n=2A031625
• Nearest integer to tan(n)^n.at n=23A054675
• Lesser of two consecutive primes such that n*p + q is a perfect square, p < q.at n=40A064545
• Number of triangular partitions of n of order 3.at n=40A084439
• Balanced primes of order nine.at n=25A096701
• Primes of the form 16n^2 + 121.at n=15A202083
• Least prime divisor of E_{2*n} which does not divide any E_{2*k} with k < n, or 1 if such a primitive prime divisor of E_{2*n} does not exist, where E_m denotes the m-th Euler number given by A122045.at n=9A242194
• Smallest prime factor of A241601(n), or 1 if A241601(n) = 1.at n=21A249909
• a(n) is the smallest prime q congruent to 1 mod n such that for all primes p >= q with p congruent to 1 mod n, the multiplicative subgroup H of (Z/pZ)* of index n contains a nontrivial mod-p arithmetic progression of length 3.at n=45A298566
• The prime factorization of abs(E(2k)) for k >= 2, E(k) the k-th Euler number. Factors sorted by size with the smallest factor negated. a(n) = -1 by convention for n = 1, 2.at n=22A326726
• Prime numbersat n=4365