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2, 3, 2, 13, 3, 3, 21, 9, 7, 47, 3, 3, 21, 9, 9, 63, 9, 9, 63, 27, 23, 157, 3, 3, 21, 9, 9, 63, 9, 9, 63, 27, 27, 189, 9, 9, 63, 27, 27, 189, 27, 27, 189, 81, 73, 503, 3, 3, 21, 9, 9, 63, 9, 9, 63, 27, 27
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..57.
David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]
N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS
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CROSSREFS
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Cf. A173459, A173460, A173461, A173462.
Sequence in context: A012960 A013117 A120864 * A023641 A083775 A083784
Adjacent sequences: A173460 A173461 A173462 * A173464 A173465 A173466
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KEYWORD
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nonn,more
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AUTHOR
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Omar E. Pol, Feb 18 2010
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EXTENSIONS
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More terms from Jinyuan Wang, Mar 02 2020
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STATUS
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approved
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