A116984 Duplicate of A046104.

1, 3, 28, 59, 146, 643, 4004, 8651, 12655, 21306, 76573, 97879, 1838395, 1936274, 13456039, 15392313, 44240665, 59632978, 103873643, 475127550, 579001193, 24793177656, 149338067129, 174131244785, 845863046269, 1865857337323

Offset

1,2

Comments

This sequence defines equal divisions of the octave with especially accurate values for the major third, 5/4. This sequence is related to A112732, denominators of the convergents for the continued fraction for log_2(5)/4.

Duplicate of A046104.

Links

Table of n, a(n) for n=1..26.

Mathematica

Table[Denominator[FromContinuedFraction[ContinuedFraction[Log[2, 5], n]]], {n, 1, 40}] (* Stefan Steinerberger, Apr 08 2006 *)

Prog

(PARI) contfracpnqn(contfrac(log(5)/log(2)), 99)[2, ] \\ M. F. Hasler, Apr 30 2020

Crossrefs

Cf. A116985, A046103, A046104, A112732.

Sequence in context: A253653 A267360 A046104 * A229055 A061793 A186429

Adjacent sequences: A116981 A116982 A116983 * A116985 A116986 A116987

Keyword

dead

Author

Gene Ward Smith, Mar 27 2006

Extensions

More terms from Stefan Steinerberger, Apr 08 2006

Status

approved