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Search: id:A147766
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| 1, 0, 2, 2, 5, 6, 13, 16, 30, 40, 66, 90, 142, 192, 290, 396
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OFFSET
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0,3
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COMMENT
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Triangle A147767 = A147766 in every column.
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FORMULA
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A000012^(-1) * A000990, where A000012^(-1) = the pairwise difference operator and A000990 = (1, 1, 3, 5, 10, 16, 29, 45,...).
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EXAMPLE
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A000990 = (1, 1, 3, 5, 10, 16,...). Pairwise differences = (1, 0, 2, 2, 5,...).
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CROSSREFS
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A000990, Cf. A147767
Sequence in context: A007988 A099926 A098600 this_sequence A034420 A028410 A140870
Adjacent sequences: A147763 A147764 A147765 this_sequence A147767 A147768 A147769
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 11 2008
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