OFFSET
1,2
COMMENTS
For n > 1 the structure of digits represents a valley. The first digit is equal to the last digit (1). The first digits are in nonincreasing order. The last digits are in nondecreasing order. The numbers may have more than one 0 digit. Sequence is infinite.
EXAMPLE
Illustration using 67 = 1000011_2:
1 . . . . 1 1
. 0 0 0 0 . .
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Jaroslav Krizek, Jul 25 2011
STATUS
approved