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Search: id:A007976
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| A007976 |
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Generalized Euler numbers. |
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+0
1
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OFFSET
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1,2
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REFERENCES
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A. A. Kirillov, On the combinatorics of coadjoint orbits, Funct. Anal. Applic., vol. 27 1992 pages 62-64.
A. A. Kirillov, Variations on the triangular theme, Amer. Math. Soc. Transl., (2), Vol. 169, 1995, pp. 43-73, see p. 52.
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EXAMPLE
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a(7) is the number of conjugacy classes in a Borel subgroup of GL(7,2), also the number of complex irreducible representations and is easily computed by GAP to be 1430. - Dmitrii Pasechnik.
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CROSSREFS
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Sequence in context: A138265 A000111 A163747 this_sequence A058259 A033543 A124531
Adjacent sequences: A007973 A007974 A007975 this_sequence A007977 A007978 A007979
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KEYWORD
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nonn,more
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AUTHOR
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Alexandre Kirillov (kirillov(AT)math.upenn.edu)
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EXTENSIONS
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a(7) corrected by Dmitrii Pasechnik (dima(AT)ntu.edu.sg), Mar 27 2008
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