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 A176771 Smallest power of 12 whose decimal expansion contains n. 1
 20736, 1, 12, 20736, 144, 2985984, 20736, 1728, 1728, 2985984, 8916100448256, 2218611106740436992, 12, 79496847203390844133441536, 144, 5159780352, 429981696, 1728, 35831808, 61917364224, 20736, 15407021574586368 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS This is to 12 as A176763 is to 3 and as A030001 is to 2. LINKS Paolo Xausa, Table of n, a(n) for n = 0..10000 FORMULA a(n) = MIN{A001021(i) such that n in decimal representation is a substring of A001021(i)}. EXAMPLE a(1) = 1 because 12^0 = 1 has "1" as a substring (not a proper substring, though). a(2) = 12 because 12^1 = 12 has "2" as a substring. a(3) = 20736 because 12^4 = 20736 has "3" as a substring. MATHEMATICA A176771[n_] := Block[{k = -1}, While[StringFreeQ[IntegerString[12^++k], IntegerString[n]]]; 12^k]; Array[A176771, 50, 0] (* Paolo Xausa, Apr 04 2024 *) CROSSREFS Cf. A001018, A030001, A176763, A176764-A176773. Sequence in context: A292021 A183631 A340175 * A223237 A017404 A017524 Adjacent sequences: A176768 A176769 A176770 * A176772 A176773 A176774 KEYWORD base,easy,nonn AUTHOR Jonathan Vos Post, Apr 25 2010 EXTENSIONS More terms from Sean A. Irvine and Jon E. Schoenfield, May 05 2010 a(0) prepended by Paolo Xausa, Apr 04 2024 STATUS approved

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Last modified September 12 18:10 EDT 2024. Contains 375853 sequences. (Running on oeis4.)