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A209922 Position of negative values in A209661 and A209662. 4
5, 10, 13, 15, 17, 20, 26, 29, 30, 34, 35, 37, 39, 40, 41, 45, 51, 52, 53, 55, 58, 60, 61, 68, 70, 73, 74, 78, 80, 82, 87, 89, 90, 91, 95, 97, 101, 102, 104, 105, 106, 109, 110, 111, 113, 115, 116, 117, 119, 120, 122, 123, 125, 135, 136, 137, 140, 143, 146, 148, 149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Absolute values of the negative terms of A209662. Sequence related to an infinite series which is equal to pi, due to Leonhard Euler.

LINKS

Ray Chandler, Table of n, a(n) for n = 1..10000

CROSSREFS

Complement of A209921.

Cf. A000796, A209661, A209662.

Sequence in context: A009003 A071821 A201012 * A084645 A313379 A092604

Adjacent sequences:  A209919 A209920 A209921 * A209923 A209924 A209925

KEYWORD

nonn

AUTHOR

Omar E. Pol, Mar 15 2012

EXTENSIONS

34, 105, 115 inserted by Ray Chandler, Mar 19 2016

STATUS

approved

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Last modified April 18 06:48 EDT 2019. Contains 322209 sequences. (Running on oeis4.)