42721

Appears in sequences

• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+359)^2 = y^2.at n=9A130610
• Number of singular 2 X 2 matrices having all elements in {-n,...,n}.at n=30A209981
• Number of 2 X 2 matrices with all elements in {0,1,...,n} and nonnegative determinant.at n=16A210290
• Odd composite integers m such that A000032(3*m-J(m,5)) == 3*J(m,5) (mod m), where J(m,5) is the Jacobi symbol.at n=39A339724