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1, 2, 1, 3, 2, 1, 5, 4, 3, 1, 9, 8, 6, 4, 1, 16, 15, 11, 10, 5, 1, 27, 26, 21, 20, 15, 6, 1, 44, 43, 42, 36, 35, 21, 7, 1, 73, 72, 84, 64, 70, 56, 28, 8, 1, 130, 129, 162, 120, 127, 126, 84, 36, 9, 1, 251, 250, 297, 240, 220, 252, 210, 120, 45, 10, 1, 507, 506, 518, 495, 385, 463, 462, 330, 165, 55, 11, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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LINKS
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FORMULA
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EXAMPLE
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First few rows of the triangle:
1;
2, 1;
3, 2, 1;
5, 4, 3, 1;
9, 8, 6, 4, 1;
16, 15, 11, 10, 5, 1;
27, 26, 21, 20, 15, 6, 1;
44, 43, 42, 36, 35, 21, 7, 1;
...
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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Terms a(23) and following corrected by Georg Fischer, Jul 04 2023
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STATUS
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approved
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