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A138373
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Count of post-period decimal digits up to which the rounded n-th convergent to sqrt(5)/2 agrees with the exact value.
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2
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1, 3, 3, 5, 6, 8, 9, 10, 9, 13, 13, 15, 15, 18, 19, 20, 22, 22, 24, 25, 26, 27, 29, 30, 32, 33, 34, 35, 36, 38, 39, 40, 41, 43, 44, 45, 47, 47, 49, 50, 52, 53, 54, 55, 56, 58, 57, 60, 61, 62, 64, 64, 67, 68, 68, 71, 72, 73, 74, 75, 76, 78, 78, 80, 82, 83, 84, 85, 86, 88, 88, 90
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Defined equivalent to A138367 considering the constant 1.1188.. = 10*A020837
and its convergents 9/8 (n=1), 19/17 (n=2), 161/144 (n=3), 341/305 (n=4), 2889/2584 (n=5).
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CROSSREFS
| Cf. A138335 - A138339, A138343, A138366, A138367, A138369, A138370 - A138374.
Sequence in context: A116592 A152772 A089175 * A011976 A060022 A187679
Adjacent sequences: A138370 A138371 A138372 * A138374 A138375 A138376
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KEYWORD
| base,nonn
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AUTHOR
| Artur Jasinski (grafix(AT)csl.pl), Mar 17 2008
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EXTENSIONS
| Definition and values replaced as defined via continued fractions - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 01 2009
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