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A160165 a(n) = A000969(n) minus toothpick number A139250(n+1). 2
0, 0, 0, 1, 3, 3, 0, 2, 10, 15, 17, 21, 22, 12, 0, 5 (list; graph; refs; listen; history; text; internal format)



Table of n, a(n) for n=0..15.

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


a(n) = A000969(n)-A139250(n+1).


Cf. A000969, A139250, 153006, A153007, A159790, A160166.

Sequence in context: A118522 A179119 A098316 * A084055 A084103 A036477

Adjacent sequences:  A160162 A160163 A160164 * A160166 A160167 A160168




Omar E. Pol, May 23 2009



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Last modified December 14 14:50 EST 2019. Contains 329979 sequences. (Running on oeis4.)