A053463 First digit of sin(n).

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

Links

Table of n, a(n) for n=0..105.

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

Adjacent sequences: A053460 A053461 A053462 * A053464 A053465 A053466

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