489395

Appears in sequences

• G.f.: x^2*(x^2 + x + 1)/(x^4 - 2*x + 1).at n=20A027084
• A list of equal temperaments (equal divisions of the octave) whose nearest scale steps are closer and closer approximations to the pair of ratios 5/4 and 8/5 which generate two complementary tones of musical harmony, the Major 3rd (5/4) and the Minor 6th (8/5).at n=23A061918