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A291476
The arithmetic function u(n,7,4).
0
25, 25, 25, 20, 25, 25, 7, 8, 9, 10, 11, 12, 13, 7, 15, 8, 17, 9, 19, 10, 7, 11, 23, 8, 25, 13, 9, 7, 25, 10, 25, 8, 11, 17, 7, 9, 25, 19, 13, 8, 25, 7, 25, 11, 9, 23, 25, 8, 7, 10, 17, 13, 25, 9, 11, 7, 19, 25, 25, 10, 25, 25, 7, 8, 13, 11, 25, 17, 23, 7
OFFSET
1,1
LINKS
Bela Bajnok, Additive Combinatorics: A Menu of Research Problems, arXiv:1705.07444 [math.NT], May 2017. See Table in Section 1.6.3.
MATHEMATICA
u[n_, m_, h_] := (d = Divisors[n]; Min[(h*Ceiling[m/d] - h + 1)*d]); Table[u[n, 7, 4], {n, 1, 70}]
KEYWORD
nonn
AUTHOR
Robert Price, Aug 24 2017
STATUS
approved