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).

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, 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, 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

Offset

1

Comments

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

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

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

Links

N. J. A. Sloane, Table of n, a(n) for n = 1..5000

Crossrefs

Cf. A081145, A308007, A308009.

Sequence in context: A014086 A014163 A358672 * A166360 A204183 A204177

Adjacent sequences: A308013 A308014 A308015 * A308017 A308018 A308019

Keyword

nonn

Author

N. J. A. Sloane, May 15 2019

Status

approved