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Search: id:A153345
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| 1, 2, 0, 4, 1, 0, 7, 4, 1, 0, 12, 11, 5, 1, 0, 20, 26, 17, 6, 1, 33, 56, 48, 24, 7, 1, 0, 54, 114, 121, 78, 32, 8, 1, 0, 88, 223, 283, 223, 117, 41, 9, 1, 0, 143, 424, 627, 584, 372, 166, 51, 10, 1, 0, 232, 789, 1334, 1434, 1073, 579, 226, 61, 11, 1, 0
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = Pell numbers, A000129: (1, 2, 5, 12, 29,...).
Left border = A000071.
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FORMULA
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Triangle read by rows, A000012 * triangle A055830 = partial sums of A055830 columns.
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EXAMPLE
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First few rows of the triangle =
1;
2, 0;
4, 1, 0;
7, 4, 1, 0;
12, 11, 5, 1, 0;
20, 26, 17, 6, 1, 0;
33, 56, 48, 24, 7, 1, 0;
54, 114, 121, 78, 32, 8, 1, 0;
88, 223, 283, 223, 117, 41, 9, 1, 0;
143, 424, 627, 584, 372, 166, 51, 10, 1, 0;
232, 789, 1334, 1434, 1073, 579, 226, 62, 11, 1, 0;
...
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CROSSREFS
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Cf. A055830, A000129
Sequence in context: A019215 A112081 A166589 this_sequence A140648 A153342 A144258
Adjacent sequences: A153342 A153343 A153344 this_sequence A153346 A153347 A153348
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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), Dec 24 2008
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