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Search: id:A136521
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| A136521 |
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Triangle read by rows: (1, 2, 2, 2,...) on the main diagonal and the rest zeros. |
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+0
3
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| 1, 0, 2, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2
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OFFSET
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1,3
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COMMENT
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A007318 * A136521 = A124927. A136521* A007318 = A134058. A001263 * A136521 = A136522.
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FORMULA
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By columns, (1, 0, 0, 0,...) in leftmost column; all others are (2, 0, 0, 0,...). By rows, row 1 = 1, others = (n-1) zeros followed by "2".
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EXAMPLE
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First few rows of the triangle are:
1;
0, 2;
0, 0, 2;
0, 0, 0, 2;
...
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CROSSREFS
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Cf. A124927, A134058, A136522.
Sequence in context: A034949 A112301 A134013 this_sequence A066448 A108497 A108498
Adjacent sequences: A136518 A136519 A136520 this_sequence A136522 A136523 A136524
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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), Jan 02 2008
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