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Search: id:A153004
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A153004 First differences of toothpick numbers A153003. +0
8
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; listen)
OFFSET

1,2

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 this_sequence A124449 A141094 A132972

Adjacent sequences: A153001 A153002 A153003 this_sequence A153005 A153006 A153007

KEYWORD

nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Jan 02 2009

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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.


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