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%I #4 Aug 21 2017 22:13:20
%S 0,0,1,1,0,2,2,2,2,3,3,3,4,3,4,4,4,5,5,6,6,6,6,6,6,6,8,7,6,8,8,9,8,10,
%T 9,9,10,9,10,10,12,11,12,11,12,12,12,14,12,12,13,13,12,15,16,15,14,15,
%U 15,15,16,18,16,16,18,17,17,18,20
%N The arithmetic function v_6(n,4).
%D J. Butterworth, Examining the arithmetic function v_g(n,h). Research Papers in Mathematics, B. Bajnok, ed., Gettysburg College, Vol. 8 (2008).
%H Bela Bajnok, <a href="https://arxiv.org/abs/1705.07444">Additive Combinatorics: A Menu of Research Problems</a>, arXiv:1705.07444 [math.NT], May 2017. See Table in Section 1.6.1.
%t v[g_, n_, h_] := (d = Divisors[n]; Max[(Floor[(d - 1 - GCD[d, g])/h] + 1)*n/d]); Table[v[6, n, 4], {n, 2, 70}]
%Y Cf. A289435, A289436, A289437, A289438, A289439, A289440, A289441.
%K nonn
%O 2,6
%A _Robert Price_, Aug 21 2017