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A084082
Length of lists created by n substitutions k -> Range[ -Floor[Abs[k]/2],Floor[Abs[k]+3/2]] starting with {0}.
0
1, 2, 5, 15, 49, 169, 604, 2212, 8244, 31128, 118716, 456337, 1765251
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..12.
EXAMPLE
{0}, {0,1}, {0,1,0,1,2}, {0,1,0,1,2,0,1,0,1,2,-1,0,1,2,3}
MATHEMATICA
{Length/@Flatten/@NestList[ # /. k:(_Integer|_Rational):>Range[ -Floor[Abs[k]/2], Floor[Abs[k]+3/2]]&, {0}, 11]}
CROSSREFS
Sequence in context:
A148365
A001892
A176025
*
A190270
A364588
A341342
Adjacent sequences:
A084079
A084080
A084081
*
A084083
A084084
A084085
KEYWORD
nonn
AUTHOR
Wouter Meeussen
, May 11 2003
STATUS
approved
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Last modified August 29 23:34 EDT 2024. Contains 375520 sequences. (Running on oeis4.)