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A045875
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a(n) is the smallest m for which 2^m contains n consecutive identical digits.
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1
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OFFSET
| 1,2
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COMMENTS
| Next term is greater than 20000. - David Wasserman (dwasserm(AT)earthlink.net), Feb 16 2002
a(11) > 250000. [From Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 21 2010]
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MATHEMATICA
| f[n_] := Block[{k = 0}, While[ !MemberQ[ Length /@ Split@ IntegerDigits[2^k], n], k++ ]; k] [From Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 21 2010]
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CROSSREFS
| Sequence in context: A120142 A110228 A175161 * A046434 A111046 A205187
Adjacent sequences: A045872 A045873 A045874 * A045876 A045877 A045878
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KEYWORD
| base,hard,nonn
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AUTHOR
| Erich Friedman (erich.friedman(AT)stetson.edu)
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EXTENSIONS
| More terms from David Wasserman (dwasserm(AT)earthlink.net), Feb 16 2002
a(9) & a(10) from Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 21 2010
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