OFFSET
1,2
COMMENTS
Begin with the main tree A074049 generated by the Wythoff sequences:
...................1
...................2
...........3.................5
.......4.......7........8........13
.....6..10...11..18....12..20...21..34
EXAMPLE
First three levels:
...................1
.............2............3
..........4.....8......9.....16
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Clark Kimberling, Jan 05 2011
STATUS
approved