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A108202
a(2n) = A007376(n); a(2n+1) = a(n).
5
0, 0, 1, 0, 2, 1, 3, 0, 4, 2, 5, 1, 6, 3, 7, 0, 8, 4, 9, 2, 1, 5, 0, 1, 1, 6, 1, 3, 1, 7, 2, 0, 1, 8, 3, 4, 1, 9, 4, 2, 1, 1, 5, 5, 1, 0, 6, 1, 1, 1, 7, 6, 1, 1, 8, 3, 1, 1, 9, 7, 2, 2, 0, 0, 2, 1, 1, 8, 2, 3, 2, 4, 2, 1, 3, 9, 2, 4, 4, 2, 2, 1, 5, 1, 2, 5, 6, 5, 2, 1, 7, 0, 2, 6, 8, 1, 2, 1, 9, 1, 3, 7, 0, 6, 3
OFFSET
0,5
COMMENTS
A sequence, S, consisting of the natural counting digits (A007376) interleaved with S.
Fractal sequence (Kimberling-type) based upon the counting digits.
Similar to but different from A025480 - N. J. A. Sloane, Nov 26 2020.
FORMULA
a(n) = A007376(A025480(n)). - Kevin Ryde, Nov 21 2020
CROSSREFS
First differs from A025480 at a(20).
Even bisection: A007376.
Cf. A003602.
Sequence in context: A062778 A363620 A363624 * A025480 A088002 A030109
KEYWORD
base,easy,nonn
AUTHOR
Juliette Bruyndonckx and Alexandre Wajnberg, Jun 15 2005
EXTENSIONS
More terms from Joshua Zucker, May 18 2006
Name made more explicit by Peter Munn, Nov 20 2020
STATUS
approved