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Search: id:A143536
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| A143536 |
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Triangle read by rows, T(n,k) = 1 if n is prime, 0 otherwise. |
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+0
3
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| 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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Row sums = A061397: (0, 2, 3, 0, 5, 0, 7,...).
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FORMULA
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Triangle read by rows, T(n,k) = 1 if n is prime, 0 otherwise. Mobius transform (A054525) of triangle A143535.
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EXAMPLE
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First few rows of the triangle =
0;
1, 1;
1, 1, 1;
0, 0, 0, 0;
1, 1, 1, 1, 1;
0, 0, 0, 0, 0, 0;
1, 1, 1, 1, 1, 1, 1;
...
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CROSSREFS
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Cf. A143535, A061397.
Sequence in context: A100047 A080891 A112713 this_sequence A080110 A122895 A097325
Adjacent sequences: A143533 A143534 A143535 this_sequence A143537 A143538 A143539
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 23 2008
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