164850

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 58.at n=13A031736
• a(n) = 196*n^2 + 14.at n=29A158555
• 25-gonal pyramidal numbers: a(n) = n*(n+1)*(23*n-20)/6.at n=35A256645
• Number of orthogonal rectangles with vertices on an n X n square grid of points but with no vertices on the grid's diagonals.at n=31A285956
• Number of ordered pairs of vertices which have two different shortest paths between them in the n-Hanoi graph (3 pegs, n discs).at n=7A340309
• Numbers k for which phi(A267099(k)) is equal to phi(k), but the number of 4m+1 and 4m+3 primes in the prime factorization of k (when counted with multiplicity) is not equal. Here A267099 is fully multiplicative involution swapping the positions of 4m+1 and 4m+3 primes, and phi is Euler totient function.at n=15A354194