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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)1, a(n) = A020988(n-1). LINKS Harvey P. Dale, Table of n, a(n) for n = 0..1000 Index entries for sequences related to binary expansion of n 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 Cf. A087118, A023416, A007088. Sequence in context: A358249 A027171 A003822 * A222358 A321314 A348095 Adjacent sequences: A087117 A087118 A087119 * A087121 A087122 A087123 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.)