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A053463 First digit of sin(n). 0
0, 8, 9, 1, 7, 9, 2, 6, 9, 4, 5, 9, 5, 4, 9, 6, 2, 9, 7, 1, 9, 8, 0, 8, 9, 1, 7, 9, 2, 6, 9, 4, 5, 9, 5, 4, 9, 6, 2, 9, 7, 1, 9, 8, 0, 8, 9, 1, 7, 9, 2, 6, 9, 3, 5, 9, 5, 4, 9, 6, 3, 9, 7, 1, 9, 8, 0, 8, 8, 1, 7, 9, 2, 6, 9, 3, 5, 9, 5, 4, 9, 6, 3, 9, 7, 1, 9, 8, 0, 8, 8, 1, 7, 9, 2, 6, 9, 3, 5, 9, 5, 4, 9, 6, 3, 9 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(n) = first digit of sin(n)

a(n) = floor(abs(10*sin(n))). - Neven Juric, Apr 18 2008

EXAMPLE

The first few values of sin(n) are as follows:

0.

.8414709848...

.9092974268...

.1411200081...

-.7568024953...

-.9589242747...

-.2794154982...

.6569865987...

.9893582466...

.4121184852...

-.5440211109...

-.9999902066...

-.5365729180...

CROSSREFS

Sequence in context: A132718 A154904 A155553 * A073636 A113521 A030167

Adjacent sequences:  A053460 A053461 A053462 * A053464 A053465 A053466

KEYWORD

nonn

AUTHOR

Hsu, Po-Wei (Benny) (arsene_lupin(AT)intekom.co.za), Jan 13 2000

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), Jan 19 2000

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.