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Search: id:A072334
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| A072334 |
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Decimal expansion of e^2. |
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+0
9
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| 7, 3, 8, 9, 0, 5, 6, 0, 9, 8, 9, 3, 0, 6, 5, 0, 2, 2, 7, 2, 3, 0, 4, 2, 7, 4, 6, 0, 5, 7, 5, 0, 0, 7, 8, 1, 3, 1, 8, 0, 3, 1, 5, 5, 7, 0, 5, 5, 1, 8, 4, 7, 3, 2, 4, 0, 8, 7, 1, 2, 7, 8, 2, 2, 5, 2, 2, 5, 7, 3, 7, 9, 6, 0, 7, 9, 0, 5, 7, 7, 6, 3, 3, 8, 4, 3, 1, 2, 4, 8, 5, 0, 7, 9, 1, 2, 1, 7, 9
(list; cons; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,20000
John Cosgrave, e^2 is irrational
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FORMULA
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Equals sum_{n>=0}(sum_{k>=0} 1/(n!*k!)). - Fredrik Johansson (fredrik.johansson(AT)gmail.com), Apr 21 2006
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EXAMPLE
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7.389056098930650...
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PROGRAM
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(PARI) { default(realprecision, 20080); x=exp(2); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b072334.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Apr 30 2009]
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CROSSREFS
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Sequence in context: A019726 A011330 A093587 this_sequence A003957 A021579 A139788
Adjacent sequences: A072331 A072332 A072333 this_sequence A072335 A072336 A072337
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KEYWORD
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nonn,cons
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Jul 15 2002
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EXTENSIONS
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Fixed my PARI program, had -n Harry J. Smith (hjsmithh(AT)sbcglobal.net), May 19 2009
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