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Search: id:A097881
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| A097881 |
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Decimal expansion of T3 = sum from 1 to infinity of fraction sequence with numerator triangular numbers and denominator sum of prime cubes. |
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+0
1
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OFFSET
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0,1
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COMMENT
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Need help for T2, seems to be near log(3)
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FORMULA
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equals sum_{n=1..infinity} A000217(n)/A030078(n). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 19 2009
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EXAMPLE
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T3=0.29439........
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CROSSREFS
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Sequence in context: A021038 A011067 A135008 this_sequence A019758 A016642 A070700
Adjacent sequences: A097878 A097879 A097880 this_sequence A097882 A097883 A097884
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KEYWORD
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more,nonn,cons
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AUTHOR
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Pierre CAMI (pierrecami(AT)tele2.fr), Sep 02 2004
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EXTENSIONS
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Offset corrected by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 19 2009
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