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A065648 a(0) = 1 and for n > 0: a(n) = number of indices 0 <= i <= n with A033307(i)=A033307(n), where A033307 is the sequence of decimal digits of Champernowne's constant 0.123456789101112131415... 5
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 5, 2, 6, 2, 7, 2, 8, 2, 9, 2, 10, 2, 11, 2, 12, 2, 3, 3, 4, 13, 5, 6, 7, 3, 8, 3, 9, 3, 10, 3, 11, 3, 12, 3, 13, 3, 4, 4, 5, 14, 6, 14, 7, 8, 9, 4, 10, 4, 11, 4, 12, 4, 13, 4, 14, 4, 5, 5, 6, 15, 7, 15, 8, 15, 9, 10, 11, 5, 12, 5, 13, 5, 14, 5, 15, 5, 6, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

PROG

(Haskell)

a065648 n = a065648_list !! n

a065648_list = f (0 : a033307_list) $ take 10 $ repeat 1 where

   f (d:ds) counts = y : f ds (xs ++ (y + 1) : ys) where

                           (xs, y:ys) = splitAt d counts

-- Reinhard Zumkeller, Aug 13 2015

CROSSREFS

Cf. A033307, A065649, A065650.

Cf. A256100.

Sequence in context: A111263 A286626 A226078 * A305977 A167506 A305815

Adjacent sequences:  A065645 A065646 A065647 * A065649 A065650 A065651

KEYWORD

base,nonn,look

AUTHOR

Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Nov 09 2001

EXTENSIONS

Definition and offset adjusted to follow a later change of A033307. - Reinhard Zumkeller, Aug 13 2015

STATUS

approved

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Last modified February 18 02:32 EST 2019. Contains 320237 sequences. (Running on oeis4.)