259749

Appears in sequences

• Intersection of A065764 and A065765: n such that x and y exist with sigma[x^2] = n = sigma[2*(y^2)].at n=11A065767
• a(n) = sqrt(sigma(2*m^2)), where m = A097023(n), i.e., sigma(2*m^2) is a square.at n=15A163764
• Number of 5-tuples of nonnegative integers less than p for which 5-argument multinomial coefficients support a Lucas congruence modulo p^2, where p is the n-th prime.at n=5A348887