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A143808
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Triangle read by rows, first n terms of the sequence (1, 2, 4, 10,...) followed by P(n); where (2, 4, 10, 12,...) = twice Pell numbers.
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1
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1, 1, 1, 1, 2, 2, 1, 2, 4, 5, 1, 2, 4, 10, 12, 1, 2, 4, 10, 24, 29, 1, 2, 4, 10, 24, 58, 70, 1, 2, 4, 10, 24, 58, 140, 169, 1, 2, 4, 10, 24, 58, 140, 338, 408, 1, 2, 4, 10, 24, 58, 140, 338, 816, 985
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,5
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COMMENTS
| Row sums = A000129(n), the Pell numbers: (1, 2, 5, 12,...).
First few rows of the triangle =
1;
1, 1;
1, 2, 2;
1, 2, 4, 5;
1, 2, 4, 10, 12;
1, 2, 4, 10, 24, 29;
1, 2, 4, 10, 24, 58, 70;
1, 2, 4, 10, 24, 58, 140, 169;
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CROSSREFS
| A000129
Sequence in context: A144218 A098691 A035364 * A172021 A059594 A183760
Adjacent sequences: A143805 A143806 A143807 * A143809 A143810 A143811
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 01 2008
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