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Search: id:A131427
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| 1, 0, 1, 0, 0, 2, 0, 0, 0, 5, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 42, 0, 0, 0, 0, 0, 0, 132, 0, 0, 0, 0, 0, 0, 0, 429
(list; table; graph; listen)
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OFFSET
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0,6
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COMMENT
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Triangle given by A000004 DELTA A000012 where DELTA is the operator defined in A084938 . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Jul 12 2007
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FORMULA
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A000108 preceded by n zeros, as an infinite lower triangular matrix.
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EXAMPLE
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First few rows of the triangle are:
1;
0, 1;
0, 0, 2;
0, 0, 0, 5;
0, 0, 0, 0, 14;
0, 0, 0, 0, 0, 42;
...
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CROSSREFS
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Cf. A131428, A131429, A000108.
Sequence in context: A011991 A129183 A110173 this_sequence A113044 A051883 A132792
Adjacent sequences: A131424 A131425 A131426 this_sequence A131428 A131429 A131430
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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), Jul 10 2007
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