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A057341
Occurrences of most frequently occurring number in 1-to-n 4-dimensional multiplication table.
4
1, 6, 12, 28, 36, 60, 60, 96, 132, 180, 180, 276, 276, 276, 396, 468, 468, 576, 576, 756, 864, 864, 864, 1032, 1032, 1032, 1096, 1320, 1320, 1644, 1644, 1740, 1740, 1740, 2052, 2328, 2328, 2328, 2328, 2652, 2652, 3252, 3252, 3252, 3672, 3672, 3672, 4080, 4080, 4080
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