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 A054635 Champernowne sequence: write n in base 3 and juxtapose. 21
 0, 1, 2, 1, 0, 1, 1, 1, 2, 2, 0, 2, 1, 2, 2, 1, 0, 0, 1, 0, 1, 1, 0, 2, 1, 1, 0, 1, 1, 1, 1, 1, 2, 1, 2, 0, 1, 2, 1, 1, 2, 2, 2, 0, 0, 2, 0, 1, 2, 0, 2, 2, 1, 0, 2, 1, 1, 2, 1, 2, 2, 2, 0, 2, 2, 1, 2, 2, 2, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 2, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 2, 1, 0, 2, 0, 1, 0, 2, 1 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Essentially the same as A003137. [From R. J. Mathar, Aug 29 2009] An irregular table in which the n-th row lists the base 3 digits of n. - Jason Kimberley, Dec 07 2012 The base 3 Champernowne constant: it is normal in base 3. - Jason Kimberley, Dec 07 2012 LINKS Reinhard Zumkeller, Rows n = 0..1000 of triangle, flattened Eric Weisstein's World of Mathematics, Ternary Champernowne Constant Wikipedia, Ternary numeral system MATHEMATICA almostNatural[n_, b_] := Block[{m = 0, d = n, i = 1, l, p}, While[m <= d, l = m; m = (b - 1) i*b^(i - 1) + l; i++]; i--; p = Mod[d - l, i]; q = Floor[(d - l)/i] + b^(i - 1); If[p != 0, IntegerDigits[q, b][[p]], Mod[q - 1, b]]]; Array[ almostNatural[#, 3] &, 105, 0] (* Robert G. Wilson v, Jun 29 2014 *) PROG (MAGMA) [0]cat &cat[Reverse(IntegerToSequence(n, 3)):n in[1..31]]; // Jason Kimberley, Dec 07 2012 (Haskell) a054635 n k = a054635_tabf !! n !! k a054635_row n = a054635_tabf !! n a054635_tabf = map reverse a030341_tabf a054635_list = concat a054635_tabf -- Reinhard Zumkeller, Feb 21 2013 CROSSREFS Cf. A007376, A030190, A054637. Table in which the n-th row lists the base b digits of n: A030190 and A030302 (b=2), A003137 and this sequence (b=3), A030373 (b=4), A031219 (b=5), A030548 (b=6), A030998 (b=7), A031035 and A054634 (b=8), A031076 (b=9), A007376 and A033307 (b=10). - Jason Kimberley, Dec 06 2012 Cf. A081604 (row lengths), A053735 (row sums), A030341, A007089, A030341. Sequence in context: A024940 A324827 A205217 * A003137 A006842 A299038 Adjacent sequences:  A054632 A054633 A054634 * A054636 A054637 A054638 KEYWORD nonn,base,cons,easy,tabf AUTHOR N. J. A. Sloane, Apr 16 2000 STATUS approved

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Last modified April 22 15:23 EDT 2021. Contains 343177 sequences. (Running on oeis4.)