

A291272


The arithmetic function v_5(n,4).


0



1, 1, 2, 0, 3, 2, 4, 3, 5, 3, 6, 3, 7, 5, 8, 4, 9, 5, 10, 7, 11, 6, 12, 5, 13, 9, 14, 7, 15, 8, 16, 11, 17, 10, 18, 9, 19, 13, 20, 10, 21, 11, 22, 15, 23, 12, 24, 14, 25, 17, 26, 13, 27, 15, 28, 19, 29, 15, 30, 15, 31, 21, 32, 15, 33, 17, 34, 23, 35
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OFFSET

2,3


REFERENCES

J. Butterworth, Examining the arithmetic function v_g(n,h). Research Papers in Mathematics, B. Bajnok, ed., Gettysburg College, Vol. 8 (2008).


LINKS

Table of n, a(n) for n=2..70.
Bela Bajnok, Additive Combinatorics: A Menu of Research Problems, arXiv:1705.07444 [math.NT], May 2017. See Table in Section 1.6.1.


MATHEMATICA

v[g_, n_, h_] := (d = Divisors[n]; Max[(Floor[(d  1  GCD[d, g])/h] + 1)*n/d]); Table[v[5, n, 4], {n, 2, 70}]


CROSSREFS

Cf. A289435, A289436, A289437, A289438, A289439, A289440, A289441.
Sequence in context: A331622 A212175 A289441 * A291273 A008807 A263149
Adjacent sequences: A291269 A291270 A291271 * A291273 A291274 A291275


KEYWORD

nonn


AUTHOR

Robert Price, Aug 21 2017


STATUS

approved



