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A023405
If any power of 2 ends with k 4's and 9's, they must be the first k terms of this sequence in reverse order.
3
4, 4, 9, 4, 9, 9, 4, 9, 4, 9, 4, 4, 9, 9, 4, 9, 4, 9, 9, 9, 4, 4, 4, 4, 9, 4, 4, 4, 4, 9, 9, 9, 9, 4, 9, 4, 4, 9, 9, 4, 4, 9, 9, 4, 9, 4, 4, 9, 4, 9, 4, 9, 4, 4, 4, 4, 4, 4, 9, 9, 9, 9, 4, 9, 4, 4, 4, 9, 9, 4, 4, 9, 4, 4, 9, 9, 4, 4, 9, 9, 9, 4, 9, 9, 9, 9, 9, 9, 4, 4, 9, 4, 4, 9, 9, 9, 9, 9, 9, 4, 4, 4, 9, 9, 4, 4, 4, 4
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A019627 A137617 A345732 * A160900 A035116 A088613
KEYWORD
nonn,base
STATUS
approved