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A139252 Number of segments needed to draw the toothpick structure as it is after n steps. 14
0, 1, 3, 5, 7, 11, 15, 17, 19, 23, 27, 31, 39, 51, 59, 61, 63, 67, 71, 75, 83, 95, 103, 107, 115, 127, 139, 155, 183, 215, 231, 233, 235, 239, 243, 247, 255, 267, 275, 279, 287, 299, 311, 327, 355, 387, 403, 407, 415 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

See the toothpick sequence (A139250) for more information.

LINKS

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

Nathaniel Johnston, Table of n, a(n) for n = 0..256

Nathaniel Johnston, C script for computing table of terms

CROSSREFS

Cf. A139250, A139251, A139253, A139254, A139255.

Sequence in context: A111622 A082418 A085493 * A076245 A172308 A190812

Adjacent sequences:  A139249 A139250 A139251 * A139253 A139254 A139255

KEYWORD

nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), May 17 2008

EXTENSIONS

Terms after a(28) from Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), Mar 29 2011

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Last modified February 16 04:47 EST 2012. Contains 205860 sequences.