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Search: id:A161413
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A161413 First differences of A161412. +0
2
1, 1, 1, 2, 4, 3, 3, 4, 6, 4, 5, 5, 10, 9, 5 (list; graph; listen)
OFFSET

1,4

COMMENT

Number of V-Toothpicks added to the sieve at the nth round.

CROSSREFS

Cf. A139251, A160121, A160407, A161207, A161329, A161412.

Sequence in context: A021415 A137363 A110549 this_sequence A069655 A004574 A073127

Adjacent sequences: A161410 A161411 A161412 this_sequence A161414 A161415 A161416

KEYWORD

more,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Jun 10 2009

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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