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A072334 Decimal expansion of e^2. 16
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; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..20000

John Cosgrave, e^2 is irrational

FORMULA

Equals sum_{n>=0}(sum_{k>=0} 1/(n!*k!)). - Fredrik Johansson, Apr 21 2006

EXAMPLE

7.389056098930650...

PROG

(PARI) { default(realprecision, 20080); x=exp(2); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b072334.txt", n, " ", d)); } [Harry J. Smith, Apr 30 2009]

CROSSREFS

Sequence in context: A019726 A011330 A093587 * A003957 A021579 A139788

Adjacent sequences:  A072331 A072332 A072333 * A072335 A072336 A072337

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane, Jul 15 2002

EXTENSIONS

Fixed my PARI program, had -n Harry J. Smith, May 19 2009

STATUS

approved

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Last modified August 22 15:28 EDT 2014. Contains 245954 sequences.