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Search: id:A126291
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| 1, 1, 1, 2, 2, 5, 8, 11, 16, 23, 22, 32, 44, 54
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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The number of orbits (equivalence classes) to which Vaille's automorphism partitions the set of A000108(n) Dyck paths of semilength n. Note the non-monotone drop from a(9) to a(10).
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CROSSREFS
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A126294(2n) = 2*a(2n) for n>0.
Sequence in context: A077232 A087910 A035570 this_sequence A056224 A052527 A042982
Adjacent sequences: A126288 A126289 A126290 this_sequence A126292 A126293 A126294
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KEYWORD
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nonn
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AUTHOR
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Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Jan 02 2007
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