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A123168 Continued fraction for c=sqrt(2)*(exp(sqrt(2))-1)/(exp(sqrt(2))+1). a(2n)=4n-3, a(2n+1)=8n-2. +0
2
0, 1, 6, 5, 14, 9, 22, 13, 30, 17, 38, 21, 46, 25, 54, 29, 62, 33, 70, 37, 78, 41, 86, 45, 94, 49, 102, 53, 110, 57, 118, 61, 126, 65, 134, 69, 142, 73, 150, 77, 158, 81, 166, 85, 174, 89, 182, 93, 190, 97, 198, 101, 206, 105, 214, 109, 222, 113 (list; graph; listen)
OFFSET

1,3

COMMENT

This continued fraction shows exp(sqrt(2)) is irrationnal.

REFERENCES

J. Borwein and D. Bailey, Mathematics by experiment, plausible reasoning in the 21st Century, A. K. Peters, p. 77

CROSSREFS

Sequence in context: A103132 A046627 A120114 this_sequence A119636 A101493 A039668

Adjacent sequences: A123165 A123166 A123167 this_sequence A123169 A123170 A123171

KEYWORD

nonn

AUTHOR

Benoit Cloitre (abmt(AT)orange.fr), Oct 02 2006

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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