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A109237 a(n) = floor(n*coth(1)). 5
1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 24, 26, 27, 28, 30, 31, 32, 34, 35, 36, 38, 39, 40, 42, 43, 44, 45, 47, 48, 49, 51, 52, 53, 55, 56, 57, 59, 60, 61, 63, 64, 65, 66, 68, 69, 70, 72, 73, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Beatty sequence for coth(1) = (e^2+1)/(e^2-1) = 1.31303...; complement of A109238.

From Reinhard Zumkeller, Aug 11 2009: (Start)

a(n) = A164087(n) for n <= 20;

a(n) = A109239(A109238(n)) and A109239(a(n)) = A109238(n). (End)

LINKS

Table of n, a(n) for n=1..66.

Eric Weisstein's World of Mathematics, Hyperbolic Cotangent

Eric Weisstein's World of Mathematics, Beatty Sequence

Index entries for sequences related to Beatty sequences

CROSSREFS

Cf. A109238, A109239, A109231, A109234.

Cf. A073747. [Reinhard Zumkeller, Aug 11 2009]

Sequence in context: A194375 A188222 A329990 * A164087 A187386 A059531

Adjacent sequences:  A109234 A109235 A109236 * A109238 A109239 A109240

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jun 23 2005

EXTENSIONS

Typo in comment corrected by Reinhard Zumkeller, Aug 10 2009

STATUS

approved

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Last modified August 7 11:56 EDT 2020. Contains 336276 sequences. (Running on oeis4.)