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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
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: A154904 A155553 A302765 * A073636 A113521 A297537
KEYWORD
nonn,base
AUTHOR
Hsu, Po-Wei (Benny) (arsene_lupin(AT)intekom.co.za), Jan 13 2000
EXTENSIONS
More terms from James A. Sellers, Jan 19 2000
STATUS
approved