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A087120 Smallest numbers having in binary representation exactly n maximal groups of consecutive zeros. 3
1, 0, 10, 42, 170, 682, 2730, 10922, 43690, 174762, 699050, 2796202, 11184810, 44739242, 178956970, 715827882, 2863311530, 11453246122, 45812984490, 183251937962, 733007751850, 2932031007402, 11728124029610, 46912496118442 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
A087116(a(n))=n and A087116(k)<n for k<a(n);
For n>1, a(n) = A020988(n-1).
LINKS
FORMULA
a(0)=1, a(1)=0, a(2)=10, a(n)=4*a(n-1)+2.
MATHEMATICA
Join[{1, 0}, NestList[4#+2&, 10, 25]] (* Harvey P. Dale, Apr 20 2019 *)
CROSSREFS
Sequence in context: A358249 A027171 A003822 * A222358 A321314 A348095
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Aug 14 2003
STATUS
approved

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Last modified July 21 02:16 EDT 2024. Contains 374462 sequences. (Running on oeis4.)