OFFSET
1,1
COMMENTS
Begin with the main tree A183169 generated by the squares:
......................1
......................2
...........4.....................3
.......16.......6...........9..........5
...256...20...36..8......81...12....25...7
EXAMPLE
First three levels:
..................2
.............14.........4
..........254...18....34...6
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Clark Kimberling, Jan 04 2011
STATUS
approved