OFFSET
1,1
COMMENTS
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
EXAMPLE
The base-60 digits of 223381 are 1, 2, 3, 1; here #(rises) = 2 and #(falls) = 1, so 223381 is in the sequence.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Clark Kimberling, Jan 08 2018
STATUS
approved