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Search: id:A048491
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| 1, 10, 28, 64, 136, 280, 568, 1144, 2296, 4600, 9208, 18424, 36856, 73720, 147448, 294904, 589816, 1179640, 2359288, 4718584, 9437176, 18874360, 37748728, 75497464, 150994936, 301989880, 603979768, 1207959544, 2415919096
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OFFSET
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0,2
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FORMULA
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9 * 2^n - 8. - Ralf Stephan
Equals binomial transform of [1, 9, 9, 9,...]. - Gary W. Adamson (qntmpkt(AT)yahoo.com), Apr 29 2008
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CROSSREFS
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n-th difference of a(n), a(n-1), ..., a(0) is (9, 9, 9, ...).
Sequence in context: A088406 A054112 A053790 this_sequence A124703 A126364 A076712
Adjacent sequences: A048488 A048489 A048490 this_sequence A048492 A048493 A048494
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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