

A162796


Number of toothpicks in the toothpick structure A139250, that are orthogonal to the initial toothpick, after n even rounds.


9



0, 2, 6, 14, 22, 30, 42, 70, 86, 94, 106, 134, 154, 182, 222, 310, 342, 350, 362, 390, 410, 438, 478, 566, 602, 630, 670, 758, 814, 906, 1046, 1302, 1366, 1374, 1386, 1414, 1434, 1462, 1502, 1590, 1626, 1654, 1694, 1782, 1838, 1930, 2070, 2326, 2394, 2422, 2462
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,2


COMMENTS

Also, partial sums of A162794.


LINKS

Table of n, a(n) for n=0..50.
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


MAPLE

a139251 := BFILETOLIST("b139251.txt") ; A162794 := proc(n) global a139251; op(2*n, a139251) ; end: A162796 := proc(n) add( A162794(k), k=1..n) ; end: seq(A162796(n), n=1..120) ; [From R. J. Mathar, Sep 27 2009]


CROSSREFS

Cf. A139250, A139251, A159791, A159792, A162793, A162794, A162795, A162797.
Sequence in context: A101572 A080766 A228649 * A172304 A160164 A074729
Adjacent sequences: A162793 A162794 A162795 * A162797 A162798 A162799


KEYWORD

nonn


AUTHOR

Omar E. Pol, Jul 14 2009


EXTENSIONS

Extended by R. J. Mathar, Sep 27 2009


STATUS

approved



