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Search: id:A052781
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| 1, 1, 6, 46, 421, 4191, 44322, 487662, 5527722, 64091887, 756590138, 9062397539, 109866112785, 1345528776005, 16622049264020, 206882949204038, 2591780764974800, 32656149762325321
(list; graph; listen)
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OFFSET
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0,3
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LINKS
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INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 738
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MAPLE
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spec := [S, {B=Prod(Z, S, S, S, S, S), S=Set(B)}, unlabeled]: seq(combstruct[count](spec, size=n), n=0..20);
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CROSSREFS
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Sequence in context: A073507 A084772 A111531 this_sequence A049378 A001829 A006386
Adjacent sequences: A052778 A052779 A052780 this_sequence A052782 A052783 A052784
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KEYWORD
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easy,nonn
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AUTHOR
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encyclopedia(AT)pommard.inria.fr, Jan 25 2000
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Search completed in 0.002 seconds
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