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Search: id:A124747
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| 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 2, 2, 2, 1, 0, 0, 3, 3, 3, 2, 1, 0, 0, 7, 7, 7, 5, 3, 1, 0, 0, 12, 12, 12, 9, 6, 3, 1, 0, 0, 30, 30, 30, 23, 16, 9, 4, 1, 0, 0, 55, 55, 55, 43, 31, 19, 10, 4, 1
(list; table; graph; listen)
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OFFSET
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0,18
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COMMENT
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Third column and row sums give A047749.
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EXAMPLE
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Triangle begins
1,
0, 1,
0, 0, 1,
0, 0, 1, 1,
0, 0, 1, 1, 1,
0, 0, 2, 2, 2, 1,
0, 0, 3, 3, 3, 2, 1,
0, 0, 7, 7, 7, 5, 3, 1,
0, 0, 12, 12, 12, 9, 6, 3, 1
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CROSSREFS
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Sequence in context: A131079 A078336 A076441 this_sequence A039981 A006140 A072931
Adjacent sequences: A124744 A124745 A124746 this_sequence A124748 A124749 A124750
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KEYWORD
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nonn,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Nov 06 2006
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