

A161413


First differences of A161412.


1



1, 1, 1, 2, 4, 3, 3, 4, 6, 4, 5, 5, 10, 9, 5
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,4


COMMENTS

Number of Vtoothpicks added to the structure at the nth round.


LINKS

Table of n, a(n) for n=1..15.
David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata
N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS


CROSSREFS

Cf. A139251, A160121, A160407, A161207, A161329, A161412.
Sequence in context: A137363 A110549 A174574 * A201049 A303354 A227418
Adjacent sequences: A161410 A161411 A161412 * A161414 A161415 A161416


KEYWORD

more,nonn


AUTHOR

Omar E. Pol, Jun 10 2009


STATUS

approved



