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A291423 The arithmetic function u(n,4,2). 0
7, 6, 7, 4, 5, 6, 7, 4, 7, 5, 7, 4, 7, 6, 5, 4, 7, 6, 7, 4, 7, 6, 7, 4, 5, 6, 7, 4, 7, 5, 7, 4, 7, 6, 5, 4, 7, 6, 7, 4, 7, 6, 7, 4, 5, 6, 7, 4, 7, 5, 7, 4, 7, 6, 5, 4, 7, 6, 7, 4, 7, 6, 7, 4, 5, 6, 7, 4, 7, 5 (list; graph; refs; listen; history; text; internal format)
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, 2], {n, 1, 70}]
Table[With[{c=Divisors[n]}, Min[(2*Ceiling[4/c]-1)*c]], {n, 100}] (* Harvey P. Dale, Feb 10 2019 *)
CROSSREFS
Sequence in context: A197687 A239341 A239606 * A276792 A188943 A093349
KEYWORD
nonn
AUTHOR
Robert Price, Aug 23 2017
STATUS
approved

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)