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 A055090 Number of cycles (excluding fixed points) of the n-th finite permutation in reversed colexicographic ordering (A055089). 6
 0, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,8 COMMENTS Among the first n! entries k appears A136394(n,k) times. - Tilman Piesk, Apr 06 2012 LINKS Tilman Piesk, Table of n, a(n) for n = 0..5039 Tilman Piesk, Table for A198380 (a[n] is the number of addends in parentheses on the right of this table) Tilman Piesk, Permutations and partitions in the OEIS (Wikiversity) FORMULA a(n) = A055093(n) - A055091(n). a(n) = A056170(A290095(n)) = A060128(A060126(n)). - Antti Karttunen, Dec 30 2017 MAPLE with(group); seq(nops(convert(PermRevLexUnrank(j), 'disjcyc')), j=0..)]; # Procedure PermRevLexUnrank given in A055089. CROSSREFS Cf. A195663, A195664, A055089 (ordered finite permutations). Cf. A198380 (cycle type of the n-th finite permutation). Cf. A136394, A055089, A055090, A055093, A055091, A060128, A290095. Sequence in context: A031242 A031260 A298735 * A290106 A060128 A330751 Adjacent sequences:  A055087 A055088 A055089 * A055091 A055092 A055093 KEYWORD nonn AUTHOR Antti Karttunen, Apr 18 2000 EXTENSIONS Name changed by Tilman Piesk, Apr 06 2012 STATUS approved

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Last modified February 16 15:17 EST 2020. Contains 331961 sequences. (Running on oeis4.)