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A116691
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Continued fraction expansion of concatenation of semiprimes (A001358).
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0
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0, 2, 7, 1, 1, 2, 4, 26, 1, 4, 1, 7, 2, 2, 1, 1, 6, 1, 3, 1, 8, 1, 7, 6, 1, 1, 1, 22, 3, 18, 2, 1, 24, 11, 1, 2, 1, 5, 7, 1, 2, 1, 3, 20, 1, 1, 5, 2, 70, 1, 1, 2, 2, 1, 1, 1, 1, 2, 5, 1, 2, 1, 1, 6, 2, 153, 1, 2, 1, 10, 13, 4, 1, 4, 1, 3, 1, 1, 3, 2, 2, 6, 3, 1, 4, 1, 7, 1, 1, 6, 1, 1, 14, 2, 1, 2, 2, 2, 2, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| This is the semiprime analogue of A030168: continued fraction expansion of Copeland-Erdos constant (concatenated primes). Decimal expression of real number formed from concatenation of first 101 digits of A001358, to first 50 terms of continued fraction expansion: 0.469101415212225... = 0 + 1/2+ 1/7+ 1/1+ 1/1+ 1/2+ 1/4+ 1/26+ 1/1+ 1/4+ 1/1+... It seems likely that the real number itself is transcendental.
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CROSSREFS
| Cf. A033308 Decimal expansion of Copeland-Erdos constant: concatenate primes.
Sequence in context: A199950 A011047 A084794 * A011340 A081705 A201889
Adjacent sequences: A116688 A116689 A116690 * A116692 A116693 A116694
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KEYWORD
| cofr,nonn,base
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AUTHOR
| Jonathan Vos Post (jvospost3(AT)gmail.com), Mar 15 2006
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EXTENSIONS
| Extended and edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Apr 25 2010
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