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A162618
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Triangle read by rows in which row n lists n consecutive natural numbers A000027, starting with A008578(n-1) - n + 1.
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3
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1, 1, 2, 1, 2, 3, 2, 3, 4, 5, 3, 4, 5, 6, 7, 6, 7, 8, 9, 10, 11, 7, 8, 9, 10, 11, 12, 13, 10, 11, 12, 13, 14, 15, 16, 17, 11, 12, 13, 14, 15, 16, 17, 18, 19, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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COMMENTS
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Note that the last term of the n-th row is the noncomposite number A008578(n-1).
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LINKS
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EXAMPLE
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Triangle begins:
1;
1, 2;
1, 2, 3;
2, 3, 4, 5;
3, 4, 5, 6, 7;
6, 7, 8, 9, 10, 11;
7, 8, 9, 10, 11, 12, 13;
10, 11, 12, 13, 14, 15, 16, 17;
11, 12, 13, 14, 15, 16, 17, 18, 19;
14, 15, 16, 17, 18, 19, 20, 21, 22, 23;
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29;
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31;
(End)
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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