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Search: id:A137500
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| 0, 0, 1, 5, 17, 51, 149, 439, 1309, 3927, 11797
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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b(n) is binomial transform of (0, 0, A077973).
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FORMULA
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a(n+1)-3a(n)=0, 1, 2, 2, 0, -4, -8, -8, 0, ... =A009545.
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CROSSREFS
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Sequence in context: A054452 A039783 A116521 this_sequence A146814 A034335 A037544
Adjacent sequences: A137497 A137498 A137499 this_sequence A137501 A137502 A137503
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KEYWORD
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nonn
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Apr 27 2008
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