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A023400
If any power of 2 ends with k 2's and 9's, they must be the first k terms of this sequence in reverse order.
3
2, 9, 9, 2, 9, 2, 2, 2, 2, 2, 2, 9, 9, 2, 9, 9, 9, 9, 2, 2, 9, 2, 9, 2, 9, 2, 2, 9, 2, 2, 9, 2, 2, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 9, 2, 2, 9, 9, 2, 9, 9, 9, 9, 9, 2, 9, 2, 9, 2, 2, 9, 9, 9, 2, 2, 9, 9, 9, 2, 9, 2, 2, 2, 2, 9, 9, 9, 9, 9, 9, 9, 9, 2, 9, 2, 9, 2, 2, 2, 9, 9, 2, 2, 2, 9, 9, 2, 9, 9, 2, 9, 9, 9, 2, 2, 9, 9
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A019702 A201899 A201894 * A153637 A137618 A340866
KEYWORD
nonn,base
STATUS
approved