1,2

Table of n, a(n) for n=1..9.

M(n) is the array in which m(x,y,z,t, w)=x*y*z*t*w for x = 1 to n, y = 1 to n, z = 1 to n, t = 1 to n and w = 1 to n. In M(7) the most frequently occurring numbers are 360, 420, 504 and 840. They occur 300 times, so a(7) = 300.

Cf. A057142, A057338, A057341, A057345, A057346.

Sequence in context: A269261 A328259 A005052 * A115134 A245428 A307307

Adjacent sequences: A057341 A057342 A057343 * A057345 A057346 A057347

nonn

Neil Fernandez, Aug 28 2000

approved