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Search: id:A059439
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| 1, 2, 7, 32, 177, 1142, 8411, 69692, 642581, 6534978, 72754927, 880877928, 11530686953, 162331760494, 2446380427331, 39300220067668, 670480457586813, 12106985274788506, 230691361507912471, 4625811718758963136
(list; graph; listen)
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OFFSET
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2,2
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REFERENCES
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L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 262 (#14).
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FORMULA
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G.f.: (1-1/Sum (k! x^k ))^2.
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CROSSREFS
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Sequence in context: A143426 A125223 A005362 this_sequence A006014 A121555 A097900
Adjacent sequences: A059436 A059437 A059438 this_sequence A059440 A059441 A059442
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Feb 01 2001
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EXTENSIONS
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More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Mar 04 2001
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