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Search: id:A059190
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| A059190 |
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Engel expansion of gamma^2, (gamma is the Euler-Mascheroni constant A001620) = 0.333178. |
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+0
1
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| 4, 4, 4, 4, 4, 6, 23, 26, 126, 132, 154, 269, 421, 911, 1899, 7335, 14245, 34244, 78354, 173699, 239896, 247397, 659900, 1646344, 2454988, 6831657, 65833355, 839918922, 1187969748, 3583279448, 4114383765, 6590212761, 11304687651
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Cf. A006784 for definition of Engel expansion
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REFERENCES
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F. Engel, Entwicklung der Zahlen nach Stammbruechen, Verhandlungen der 52. Versammlung deutscher Philologen und Schulmaenner in Marburg, 1913, pp. 190-191.
P. Erdos and J. O. Shallit, New bounds on the length of finite Pierce and Engel series, Sem. Theor. Nombres Bordeaux (2) 3 (1991), no.1, 43-53.
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LINKS
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Index entries for sequences related to Engel expansions
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MATHEMATICA
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EngelExp[ A_, n_ ] := Join[ Array[ 1&, Floor[ A ] ], First@Transpose@NestList[ {Ceiling[ 1/Expand[ #[ [ 1 ] ]#[ [ 2 ] ]-1 ] ], Expand[ #[ [ 1 ] ]#[ [ 2 ] ]-1 ]}&, {Ceiling[ 1/(A-Floor[ A ]) ], A-Floor[ A ]}, n-1 ] ]
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CROSSREFS
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Sequence in context: A091844 A007208 A103276 this_sequence A085142 A064053 A108893
Adjacent sequences: A059187 A059188 A059189 this_sequence A059191 A059192 A059193
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KEYWORD
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nonn,easy,nice
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AUTHOR
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Mitch Harris (Harris.Mitchell(AT)mgh.harvard.edu)
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