OFFSET
1,2
EXAMPLE
M(n) is the array in which m(x,y,z,t)=x*y*z*t for x = 1 to n, y = 1 to n, z = 1 to n and t = 1 to n. In M(7) the most frequently occurring numbers are 60, 72, 84, 120 and 168. They occur 60 times, so a(7) = 60.
CROSSREFS
KEYWORD
nonn
AUTHOR
Neil Fernandez, Aug 28 2000
EXTENSIONS
a(16)-a(50) from Charlie Neder, Jan 15 2019
STATUS
approved