OFFSET
0,3
COMMENTS
Sum of reciprocals of each row (n > 1) equals 1/2. E.g., 1/3 + 1/6, 1/4 + 1/10 + 1/15 + 1/12 and so on. The link to cut-the-knot gives credit to Pierre Lamothe for this observation. - Joshua Zucker, May 11 2006
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
Ivan Neretin, Table of n, a(n) for n = 0..4096
Alexander Bogomolny, Cut-the-knot on Stern-Brocot trees
CROSSREFS
KEYWORD
nonn,easy,tabf
AUTHOR
EXTENSIONS
More terms from Megan Wawro (s1095813(AT)cedarville.edu)
More terms from Joshua Zucker, May 11 2006
STATUS
approved