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A291425
The arithmetic function u(n,4,4).
0
13, 10, 13, 4, 5, 6, 7, 4, 9, 5, 11, 4, 13, 7, 5, 4, 13, 6, 13, 4, 7, 10, 13, 4, 5, 10, 9, 4, 13, 5, 13, 4, 11, 10, 5, 4, 13, 10, 13, 4, 13, 6, 13, 4, 5, 10, 13, 4, 7, 5, 13, 4, 13, 6, 5, 4, 13, 10, 13, 4, 13, 10, 7, 4, 5, 6, 13, 4, 13, 5
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, 4, 4], {n, 1, 70}]
KEYWORD
nonn
AUTHOR
Robert Price, Aug 23 2017
STATUS
approved