OFFSET
1,2
COMMENTS
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
EXAMPLE
The base-3 digits of 132 are 1,1,2,2,0; here #(rises) = #(falls) = 1, so 132 is in the sequence.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Clark Kimberling, Dec 19 2017
STATUS
approved