0,1

Also sin(Pi/8) or sine of 22.5 degrees.

The real part of i^(1/4) or cos(Pi/8) is A144981.

Table of n, a(n) for n=0..104.

0.382683432365089771728459984...

evalf(sin(Pi/8)) ; # R. J. Mathar, Jan 10 2013

Cf. A144981.

Sequence in context: A103712 A327951 A132019 * A086178 A016669 A094964

Adjacent sequences: A182165 A182166 A182167 * A182169 A182170 A182171

nonn,cons

Stanislav Sykora, May 16 2012

approved