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Search: id:A132776
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| 1, 3, 2, 5, 8, 3, 7, 18, 15, 4, 9, 32, 42, 24, 5, 11, 50, 90, 80, 35, 6, 13, 72, 165, 200, 135, 48, 7, 15, 98, 273, 420, 385, 210, 63, 8, 17, 128, 420, 784, 910, 672, 308, 80, 9, 19, 162, 612, 1344, 1890, 1764, 1092, 432, 99, 10
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A053220: (1, 5, 16, 44, 112, 272,...). A003506 = A007318 * A128064(unsigned).
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FORMULA
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A128064(unsigned) * A007318 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 2;
5, 8, 3;
7, 18, 15, 4;
9, 32, 42, 24, 5;
11, 50, 90, 80, 35, 6;
...
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CROSSREFS
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Cf. A128064, A053220, A003506.
Sequence in context: A089334 A016649 A124422 this_sequence A019594 A085167 A127299
Adjacent sequences: A132773 A132774 A132775 this_sequence A132777 A132778 A132779
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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 29 2007
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