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A001112
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A continued fraction.
(Formerly M2370 N0939)
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2
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0, 1, 1, 3, 4, 11, 136, 283, 419, 1121, 1540, 38081, 39621, 117323, 156944, 431211, 5331476, 11094163, 16425639, 43945441, 60371080, 1492851361, 1553222441, 4599296243, 6152518684, 16904333611, 209004522016
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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COMMENTS
| Ignoring a(0)=0 gives the denominators of continued fraction convergents to sqrt(162).
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REFERENCES
| R. Alter, On the non-existence of perfect double Hamming-error-correcting codes on q=8 and q=9 symbols. Information and Control 13 1968 619-627.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| R. Alter, On the non-existence of perfect double Hamming-error-correcting codes on q=8 and q=9 symbols, Information and Control 13 (6) (1968) 619-627.
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CROSSREFS
| Cf. A041298.
Sequence in context: A192223 A079940 A041299 * A042079 A045826 A084200
Adjacent sequences: A001109 A001110 A001111 * A001113 A001114 A001115
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KEYWORD
| nonn,cofr,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| Edited by R. J. Mathar, Aug 31 2009
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