OFFSET
1,2
COMMENTS
Encoding 'ana'/'121' = 1 and 'ann'/'122' = 2 results again in A060032 (left shifted).
EXAMPLE
a(3)= 357= 256+64+32+4+1= '101,100,101' (base 2), A060032(3)= '121,122,121'.
CROSSREFS
KEYWORD
eigen,nonn
AUTHOR
Frank Ellermann, Jun 11 2001
STATUS
approved