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Search: id:A136489
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| 1, 1, 1, 1, 4, 1, 1, 5, 5, 1, 1, 8, 10, 8, 1, 1, 9, 18, 18, 9, 1, 1, 12, 27, 40, 27, 12, 1, 1, 13, 39, 67, 67, 39, 13, 1, 1, 16, 52, 112, 134, 112, 52, 16, 1, 1, 17, 68, 164, 246, 246, 164, 68, 17, 1
(list; table; graph; listen)
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OFFSET
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0,5
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COMMENT
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Row sums = A122746: (1, 2, 6, 12, 28, 56, 120, 240, 496,...)
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 4, 1;
1, 5, 5, 1;
1, 8, 10, 8, 1;
1, 9, 18, 18, 9, 1;
1, 12, 27, 40, 27, 12, 1;
1, 13, 39, 67, 67, 39, 13, 1;
1, 16, 52, 112, 134, 112, 52, 16, 1;
1, 17, 68, 164, 246, 246, 164, 68, 17, 1;
...
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CROSSREFS
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Cf. A034851, A122746.
Sequence in context: A146770 A143334 A156050 this_sequence A166455 A131239 A114033
Adjacent sequences: A136486 A136487 A136488 this_sequence A136490 A136491 A136492
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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 01 2008
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