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Least k for which the integers floor(5*k/m) for m=2,3,...,n are distinct.
1

%I #16 Apr 26 2021 11:59:40

%S 1,1,1,2,4,4,4,6,10,13,13,18,18,22,29,34,37,42,45,55,58,65,73,76,84,

%T 93,97,106,120,125,130,146,157,163,174,186,199,205,218,238,245,260,

%U 274,289,305,312,328,345,362,379,396,405,433,442

%N Least k for which the integers floor(5*k/m) for m=2,3,...,n are distinct.

%o (PARI) a(n) = my(k=1); while(#Set(vector(n-1, m, 5*k\(m+1))) != n-1, k++); k; \\ _Michel Marcus_, Apr 25 2021

%Y Cf. A043549, A043550, A043551.

%K nonn

%O 1,4

%A _Clark Kimberling_