

A120731


Decimal expansion of 3 + sqrt(2)/10.


1



3, 1, 4, 1, 4, 2, 1, 3, 5, 6, 2, 3, 7, 3, 0, 9, 5, 0, 4, 8, 8, 0, 1, 6, 8, 8, 7, 2, 4, 2, 0, 9, 6, 9, 8, 0, 7, 8, 5, 6, 9, 6, 7, 1, 8, 7, 5, 3, 7, 6, 9, 4, 8, 0, 7, 3, 1, 7, 6, 6, 7, 9, 7, 3, 7, 9, 9, 0, 7, 3, 2, 4, 7, 8, 4, 6, 2, 1, 0, 7, 0, 3, 8, 8, 5, 0, 3, 8, 7, 5, 3, 4, 3, 2, 7, 6, 4, 1, 5, 7
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OFFSET

1,1


COMMENTS

Said to be Dante Alighieri's approximation to Pi.


REFERENCES

Jörg Arndt and Christoph Haenel, Pi Unleashed, New York: Springer (2001), p. 56.


LINKS

Table of n, a(n) for n=1..100.
D. Castellanos, The ubiquitous pi, Math. Mag., 61 (1988), 6798 and 148163. [N. J. A. Sloane, Mar 24 2012]


EXAMPLE

3 + sqrt(2)/10 = 3.141421356237309504880168872..., which differs from Pi by 0.00017129735248373485...


CROSSREFS

Essentially the same sequence as A002193.
Sequence in context: A290478 A240698 A010602 * A294098 A087477 A029212
Adjacent sequences: A120728 A120729 A120730 * A120732 A120733 A120734


KEYWORD

nonn,cons,easy


AUTHOR

Zak Seidov, Aug 18 2006


STATUS

approved



