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A267699
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First differences of A267698.
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3
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0, 2, 4, 7, 12, 7, 12, 15, 20, 7, 12, 15, 20, 15, 28, 39, 36, 7, 12, 15, 20, 15, 28, 39, 36, 15
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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COMMENTS
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Number of Q-toothpicks added at n-th stage in the Q-toothpick structure of A267698.
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LINKS
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EXAMPLE
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When the positive terms are written as an irregular triangle in which the row lengths are the terms of A011782 the sequence begins:
2;
4;
7, 12;
7, 12, 15, 20;
7, 12, 15, 20, 15, 28, 39, 36;
7, 12, 15, 20, 15, 28, 39, 36, 15,...
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CROSSREFS
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KEYWORD
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nonn,tabf,more
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AUTHOR
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STATUS
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approved
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