OFFSET
1,3
COMMENTS
Do all pairs of digits appear infinitely often? The sequence is not periodic.
EXAMPLE
... a(11)=a(9)+a(10), a(12)=left pair of (a(10)+a(11)=55+89=14 4),
a(13)=right pair of (a(10)+a(11)=55+89=14 4),
a(14)=left pair of (a(11)+a(12)=89+14=10 3),
a(15)=right pair of (a(11)+a(12)=89+14=10 3), a(16)=a(12)+a(13) ...
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Bodo Zinser, Mar 20 2004
STATUS
approved