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A073747 Decimal expansion of coth(1). +0
9
1, 3, 1, 3, 0, 3, 5, 2, 8, 5, 4, 9, 9, 3, 3, 1, 3, 0, 3, 6, 3, 6, 1, 6, 1, 2, 4, 6, 9, 3, 0, 8, 4, 7, 8, 3, 2, 9, 1, 2, 0, 1, 3, 9, 4, 1, 2, 4, 0, 4, 5, 2, 6, 5, 5, 5, 4, 3, 1, 5, 2, 9, 6, 7, 5, 6, 7, 0, 8, 4, 2, 7, 0, 4, 6, 1, 8, 7, 4, 3, 8, 2, 6, 7, 4, 6, 7, 9, 2, 4, 1, 4, 8, 0, 8, 5, 6, 3, 0, 2, 9, 4, 6, 7, 9 (list; cons; graph; listen)
OFFSET

1,2

COMMENT

coth(x) = (e^x + e^(-x)) /(e^x - e^(-x))

REFERENCES

S. Selby, editor, CRC Basic Mathematical Tables, CRC Press, 1970, p. 218.

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

EXAMPLE

1.31303528549933130363616124693...

PROGRAM

(PARI) 1/tanh(1)

CROSSREFS

Cf. A005408 (continued fraction: odd numbers), A073744 (tanh(1)=1/A073747), A073742 (sinh(1)), A073743 (cosh(1)), A073745 (csch(1)), A073746 (sech(1)).

Sequence in context: A091422 A112298 A011430 this_sequence A127549 A082648 A144477

Adjacent sequences: A073744 A073745 A073746 this_sequence A073748 A073749 A073750

KEYWORD

cons,nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Aug 07 2002

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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