|
| |
|
|
A153004
|
|
First differences of toothpick numbers A153003.
|
|
7
| |
|
|
1, 3, 3, 3, 6, 9, 6, 3, 6, 9, 9, 12, 21, 24, 12, 3, 6, 9, 9, 12, 21, 24, 15, 12, 21, 27, 30, 45, 66, 60, 24, 3, 6, 9, 9, 12, 21, 24, 15, 12, 21, 27, 30, 45, 66, 60, 27, 12, 21, 27, 30, 45, 66, 63, 42, 45, 69, 84, 105, 156, 192, 144, 48, 3
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
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
|
|
|
EXAMPLE
| Triangle begins:
1;
3,3;
3,6,9,6;
3,6,9,9,12,21,24,12;
3,6,9,9,12,21,24,15,12,21,27,30,45,66,60,24;
|
|
|
CROSSREFS
| Cf. A139251, A152968, A152978, A152998, A153000, A153003.
Toothpick sequence: A139250.
Sequence in context: A058675 A025497 A031502 * A124449 A141094 A132972
Adjacent sequences: A153001 A153002 A153003 * A153005 A153006 A153007
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Jan 02 2009
|
| |
|
|
