A019840 Decimal expansion of sine of 31 degrees.

5, 1, 5, 0, 3, 8, 0, 7, 4, 9, 1, 0, 0, 5, 4, 2, 1, 0, 0, 8, 1, 6, 3, 1, 9, 3, 6, 3, 9, 8, 1, 3, 8, 2, 8, 3, 4, 1, 6, 0, 8, 2, 8, 3, 3, 7, 4, 6, 3, 1, 9, 4, 7, 3, 8, 6, 1, 2, 2, 0, 2, 7, 6, 2, 0, 0, 5, 0, 4, 4, 3, 6, 3, 7, 0, 9, 2, 9, 2, 3, 1, 8, 8, 0, 3, 7, 2, 8, 1, 0, 5, 8, 4, 6, 4, 3, 5, 9, 6

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

This sequence is also decimal expansion of cosine of 59 degrees. - Mohammad K. Azarian, Jun 29 2013

An algebraic number of degree 48 and denominator 2. - Charles R Greathouse IV, Aug 27 2017

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000
• Index entries for algebraic numbers, degree 48

Programs

PARI

sin(31*Pi/180) \\ Charles R Greathouse IV, Aug 27 2017