104120

Appears in sequences

• Number of isomorphism classes of self-orthogonal Latin squares of order n.at n=7A181593
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w^2>x^2+y^2.at n=37A211631
• a(n) = sigma(2*n^3) - sigma(n^3).at n=36A225959
• a(n) is the least k such that k^2 + 1 is a semiprime p*q, p < q, and (q - p)/2^n is prime.at n=17A258780