A291272 - OEIS

%I #4 Aug 21 2017 22:12:26

%S 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,

%T 11,17,10,18,9,19,13,20,10,21,11,22,15,23,12,24,14,25,17,26,13,27,15,

%U 28,19,29,15,30,15,31,21,32,15,33,17,34,23,35

%N The arithmetic function v_5(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[5, n, 4], {n, 2, 70}]

%Y Cf. A289435, A289436, A289437, A289438, A289439, A289440, A289441.

%K nonn

%O 2,3

%A _Robert Price_, Aug 21 2017