A159794 - OEIS

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A159794

a(n) = A153006(n)*3.

2

0, 3, 9, 18, 27, 39, 60, 84, 99, 111, 132, 159, 189, 234, 300, 360, 387, 399, 420, 447, 477, 522, 588, 651, 693, 738, 807, 891, 996, 1152, 1344, 1488, 1539, 1551, 1572, 1599, 1629, 1674, 1740, 1803, 1845, 1890, 1959, 2043, 2148, 2304, 2496, 2643

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..47.

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

CROSSREFS

Toothpick sequence: A139250.

Cf. A139251, A152980, A153006, A159793, A159795.

Sequence in context: A057681 A103312 A325729 * A352643 A100967 A193567

Adjacent sequences: A159791 A159792 A159793 * A159795 A159796 A159797

KEYWORD

nonn

AUTHOR

Omar E. Pol, May 02 2009

EXTENSIONS

More terms from Max Alekseyev, Dec 13 2011

STATUS

approved