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A076494
Number of common decimal digits of 2^n and 2^(1+n).
0
0, 0, 0, 0, 0, 0, 1, 2, 2, 3, 2, 1, 2, 3, 2, 1, 2, 2, 3, 4, 3, 2, 1, 1, 1, 4, 4, 5, 6, 6, 4, 3, 3, 5, 6, 6, 5, 4, 4, 5, 5, 5, 6, 7, 6, 6, 7, 6, 6, 7, 7, 6, 5, 5, 6, 5, 7, 8, 7, 8, 8, 8, 8, 8, 8, 7, 9, 9, 9, 7, 6, 7, 7, 8, 8, 8, 7, 9, 9, 8, 9, 9, 9, 9, 8, 9, 10, 10, 9, 7, 8, 8, 9, 10, 10, 10, 10, 9, 9, 10, 9
OFFSET
1,8
MATHEMATICA
Table[Length[Intersection[IntegerDigits[2^n], InterDigits[2^(n+1)]]], {n, 1, 100}]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Labos Elemer, Oct 21 2002
STATUS
approved