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A308016 The terms of A308007 appear to lie on two lines; set a(n) = 0 if A308007(n) is on the lower line (defined by A308009(n) <= n), a(n) = 1 if it is on the upper line (defined by a(n) >= n). 6

%I

%S 1,1,1,1,1,1,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,

%T 0,0,1,0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,

%U 1,0,0,0,0,1,0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0

%N The terms of A308007 appear to lie on two lines; set a(n) = 0 if A308007(n) is on the lower line (defined by A308009(n) <= n), a(n) = 1 if it is on the upper line (defined by a(n) >= n).

%C The first six terms of A308007 lie on both lines, so a(n) for n <= 6 is both 0 and 1.

%C More than the usual number of terms are given in order to show the irregularities.

%C It is only a (strong) conjecture that the terms of A308007 line on two lines. Certainly this is true for the first million terms.

%H N. J. A. Sloane, <a href="/A308016/b308016.txt">Table of n, a(n) for n = 1..5000</a>

%Y Cf. A081145, A308007, A308009.

%K nonn

%O 1

%A _N. J. A. Sloane_, May 15 2019

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Last modified May 28 18:24 EDT 2022. Contains 354122 sequences. (Running on oeis4.)