45400

Appears in sequences

• a(n) = {n^2}_n.at n=34A122635
• a(n) is the number of primes occurring between A053182(n) and A053183(n) (excluding the endpoints).at n=16A238399
• Practical numbers q with q + 2 and q^2 + 2 both practical.at n=22A294225
• Irregular table read by rows: Take a triangle with Pythagorean triple leg lengths with all diagonals drawn, as in A332978. Then T(n,k) = number of k-sided polygons in that figure for k >= 3 where the legs are divided into unit length parts.at n=34A333135
• Numbers k that divide the k-th Franel number.at n=28A372940
• Triangle read by rows, with T(n,k) giving the number of n X n Boolean matrices with exactly k ones having at least one zero row and at least one zero column.at n=46A392483