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A043552
Least k for which the integers floor(5*k/m) for m=2,3,...,n are distinct.
1
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, 93, 97, 106, 120, 125, 130, 146, 157, 163, 174, 186, 199, 205, 218, 238, 245, 260, 274, 289, 305, 312, 328, 345, 362, 379, 396, 405, 433, 442
OFFSET
1,4
PROG
(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
CROSSREFS
KEYWORD
nonn
STATUS
approved