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A222181
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Number of pentagons added at n-th stage to the structure of A222180.
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4
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0, 1, 5, 10, 10, 10, 20, 30, 20, 10, 20, 40, 40, 30, 50, 70, 40, 10, 20, 40, 60, 80
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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COMMENTS
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Essentially the first differences of A222180.
Also number of P-toothpicks added at n-th stage to the P-toothpick structure of A222180.
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LINKS
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FORMULA
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EXAMPLE
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Apparently this is an irregular triangle:
0;
1;
5;
10,10;
10,20,30,20;
10,20,40,40,30,50,70,40;
10,20,40,60,80,...
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CROSSREFS
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Cf. A139250, A139251, A147582, A151724, A152968, A161645, A182633, A182841, A222173, A222177, A222180.
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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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