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Search: id:A140207
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| A140207 |
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Triangle read by rows in which row n (n>=0) gives the first n terms of A000041. |
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+0
4
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| 1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 2, 3, 5, 1, 1, 2, 3, 5, 7, 1, 1, 2, 3, 5, 7, 11, 1, 1, 2, 3, 5, 7, 11, 15, 1, 1, 2, 3, 5, 7, 11, 15, 22, 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 42, 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 42, 56, 1, 1, 2, 3, 5, 7, 11, 15, 22
(list; table; graph; listen)
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OFFSET
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0,6
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REFERENCES
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Aicardi Francesca, MATRICIAL FORMULAE FOR PARTITIONS, arXiv:0806.1273. [Note that there is an error in the triangle given there.]
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EXAMPLE
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Triangle begins:
1
1,1
1,1,2
1,1,2,3
1,1,2,3,5
1,1,2,3,5,7
1,1,2,3,5,7,11
1,1,2,3,5,7,11,15
1,1,2,3,5,7,11,15,22
1,1,2,3,5,7,11,15,22,30
1,1,2,3,5,7,11,15,22,30,42
1,1,2,3,5,7,11,15,22,30,42,56
1,1,2,3,5,7,11,15,22,30,42,56,77
1,1,2,3,5,7,11,15,22,30,42,56,77,101
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CROSSREFS
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Sequence in context: A088426 A124769 A128227 this_sequence A104763 A027751 A004070
Adjacent sequences: A140204 A140205 A140206 this_sequence A140208 A140209 A140210
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KEYWORD
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nonn,tabl
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AUTHOR
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njas, Jun 10 2008, based on a suggestion from Gary Adamson.
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