A049467 - OEIS

A049467

Replace each fraction p/q in Farey tree A007305/A007306 with 4p+q.

1, 5, 6, 7, 11, 8, 13, 17, 16, 9, 15, 20, 19, 23, 28, 27, 21, 10, 17, 23, 22, 27, 33, 32, 25, 29, 40, 45, 39, 38, 43, 37, 26, 11, 19, 26, 25, 31, 38, 37, 29, 34, 47, 53, 46, 45, 51, 44, 31, 35, 52, 63, 57, 62, 73, 67, 50, 49, 65, 70, 59, 53, 58, 47, 31, 12, 21, 29

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

REFERENCES

J. C. Lagarias, Number Theory and Dynamical Systems, pp. 35-72 of S. A. Burr, ed., The Unreasonable Effectiveness of Number Theory, Proc. Sympos. Appl. Math., 46 (1992). Amer. Math. Soc.

LINKS

Table of n, a(n) for n=0..67.

FORMULA

Equals 4*A007305+A007306.

CROSSREFS

Sequence in context: A179274 A104122 A336857 * A131503 A047266 A026309

Adjacent sequences: A049464 A049465 A049466 * A049468 A049469 A049470

KEYWORD

nonn,easy,tabf

AUTHOR

Gregory V. Richardson

STATUS

approved