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A229728 Decimal expansion of the square of the constant A130834. 2
3, 2, 0, 9, 9, 1, 2, 3, 0, 0, 7, 2, 8, 1, 5, 7, 6, 7, 8, 6, 2, 9, 7, 4, 9, 4, 8, 1, 7, 7, 9, 9, 0, 5, 1, 5, 8, 7, 4, 8, 5, 9, 2, 1, 2, 4, 2, 5, 1, 8, 3, 4, 4, 9, 4, 8, 7, 4, 5, 8, 6, 0, 0, 5, 8, 4, 6, 1, 0, 2, 4, 6, 4, 1, 6, 2, 4, 2, 4, 0, 2, 0, 4, 0, 6, 6, 7, 6, 7, 1, 2, 1, 5, 1, 4, 1, 0, 8, 8, 7, 0, 9, 4, 2, 8, 4, 6, 6, 9, 1, 5, 8, 3, 8, 7, 5, 2, 2, 6, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

S. R. Finch, Mathematical Constants, Cambridge, 2003, p. 232.

LINKS

Table of n, a(n) for n=1..120.

EXAMPLE

3.209912300728157678629749481779905158748592124251834494874586...

PROG

(PARI) exp(4*Catalan/Pi) \\ Charles R Greathouse IV, Jul 15 2014

CROSSREFS

Cf. A130834.

Sequence in context: A335998 A152441 A248181 * A077907 A067346 A282423

Adjacent sequences:  A229725 A229726 A229727 * A229729 A229730 A229731

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane, Oct 01 2013

STATUS

approved

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Last modified September 22 22:38 EDT 2021. Contains 347609 sequences. (Running on oeis4.)