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A271452 Decimal expansion of Hoffman's approximation to Pi. 1
3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 6, 4, 3, 8, 2, 2, 2, 1, 0, 3, 6, 3, 1, 7, 8, 8, 9, 3, 4, 4, 0, 0, 7, 2, 3, 4, 1, 6, 8, 7, 6, 9, 1, 5, 0, 9, 4, 2, 8, 5, 9, 6, 9, 5, 2, 1, 0, 6, 0, 7, 1, 5, 2, 4, 0, 7, 6, 2, 8, 2, 4, 9, 3, 7, 2, 5, 4, 1, 2, 8, 4, 3, 3, 4, 7, 8, 0, 7, 8, 9, 8, 4, 0, 6, 1, 2, 3, 7, 1, 8, 6, 7, 7, 3, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The expression (Googol/11222.11122)^(1/193), with Googol fixed as 10^100, approximates Pi with an absolute error of about 5.4e-11. The 'symmetry' of the denominator, the fact that 193 is a prime, and the fact that it relates Pi with Googol make it a rare curiosity.

LINKS

Stanislav Sykora, Table of n, a(n) for n = 1..1000

D. W. Hoffman, A Pi Curiosity, College Mathematics Journal, 40 (2009), 399.

Eric Weisstein's World of Mathematics, Googol</a

Wikipedia, Approximations of Pi.

Wikipedia, Googol.

EXAMPLE

3.141592653643822210363178893440072341687691509428596952106071524 ...

PROG

(PARI) (10^100/11222.11122)^(1/193)

CROSSREFS

Cf. A000796, A244450.

Sequence in context: A000796 A212131 A114609 * A068089 A068079 A152042

Adjacent sequences:  A271449 A271450 A271451 * A271453 A271454 A271455

KEYWORD

nonn,cons

AUTHOR

Stanislav Sykora, Apr 08 2016

STATUS

approved

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Last modified June 23 18:12 EDT 2017. Contains 288668 sequences.