A111511 -id:A111511 - cp's OEIS frontend

A111513 Decimal expansion of (abs(log_10(sine of 1 degree))).

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

Offset: 0

Mohammad K. Azarian, Nov 16 2005, Dec 11 2008

Log denotes the common (base 10) logarithm in the definition, so the constant is A111511/A002392. [From R. J. Mathar, Jan 26 2009]

Cf. A019810.

RealDigits[Abs[Log[10,Sin[1 Degree]]],10,120][[1]] (* Harvey P. Dale, Jul 03 2024 *)

A111514 Decimal expansion of (abs(log_10(sine of 1 degree)))^(-1).

Original entry on oeis.org

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

Offset: 0

Mohammad K. Azarian, Nov 16 2005

Cf. A019810.

evalf(1/log[10](sin(Pi/180))); # R. J. Mathar, Apr 23 2009

RealDigits[1/Abs[Log10[Sin[1 Degree]]],10,120][[1]] (* Harvey P. Dale, Jul 30 2023 *)

Equals A002392/A111511. - R. J. Mathar, Apr 23 2009

cp's OEIS Frontend

A111513 Decimal expansion of (abs(log_10(sine of 1 degree))).

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