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 A063563 Smallest k such that 3^k has exactly n 8's in its decimal representation. 1
 1, 4, 18, 25, 44, 32, 47, 69, 102, 118, 98, 163, 201, 139, 225, 230, 209, 271, 280, 318, 287, 304, 290, 331, 369, 361, 429, 375, 446, 378, 533, 513, 504, 410, 551, 481, 571, 635, 568, 580, 610, 648, 713, 704, 720, 753, 689, 923, 829, 806, 839 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Harvey P. Dale, Table of n, a(n) for n = 0..500 MATHEMATICA a = {}; Do[k = 1; While[ Count[ IntegerDigits[3^k], 8] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a With[{t=3^Range[1000]}, Table[Position[t, _?(DigitCount[#, 10, 8]==n&), 1, 1], {n, 0, 50}]]//Flatten (* Harvey P. Dale, Jul 10 2017 *) CROSSREFS Sequence in context: A057342 A192195 A099565 * A323848 A166749 A103067 Adjacent sequences:  A063560 A063561 A063562 * A063564 A063565 A063566 KEYWORD base,nonn AUTHOR Robert G. Wilson v, Aug 10 2001 EXTENSIONS Name corrected by Jon E. Schoenfield, Jun 26 2018 STATUS approved

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Last modified May 13 01:53 EDT 2021. Contains 343830 sequences. (Running on oeis4.)