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Search: id:A014781
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| A014781 |
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Seidel's triangle, read by rows. |
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+0
1
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| 1, 1, 1, 1, 2, 1, 2, 3, 3, 8, 6, 3, 8, 14, 17, 17, 56, 48, 34, 17, 56, 104, 138, 155, 155, 608, 552, 448, 310, 155, 608, 1160, 1608, 1918, 2073, 2073, 9440, 8832, 7672, 6064, 4146, 2073, 9440, 18272, 25944, 32008, 36154, 38227
(list; graph; listen)
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OFFSET
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1,5
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REFERENCES
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D. Dumont and A. Randrianarivony, Derangements et nombres de Genocchi, Discrete Mathematics, vol. 132, pp. 37-49, 1994.
R. Ehrenborg and E. Steingrimsson, Yet another triangle for the Genocchi numbers, Europ. J. Combin., 21 (2000), 593-600.
G. Kreweras, Sur les permutations compte'es par les nombres de Genocchi..., Europ. J. Comb., vol. 18, pp. 49-58, 1997.
L. Seidel, Ueber eine einfache Entstehungsweise der Bernoulli'schen Zahlen und einiger verwandten Reihen, Sitzungsberichte der mathematisch-physikalischen Classe der k\"oniglich bayerischen Akademie der Wissenschaften zu M\"unchen, volume 7 (1877), 157-187.
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LINKS
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D. Dumont and J. Zeng, Polynomes d'Euler et les fractions continues de Stieltjes-Rogers, Ramanujan J. 2 (1998) 3, 387-410.
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EXAMPLE
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1; 1; 1, 1; 2, 1; 2, 3, 3; 8, 6, 3; 8, 14, 17, 17; 56, 48, 34, 17; 56, 104, 138, 155, 155; 608, ...
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CROSSREFS
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Even terms of first column give A005439. Diagonal gives A001469.
Cf. A005439, A001469.
Sequence in context: A015746 A109266 A022876 this_sequence A066016 A098068 A075425
Adjacent sequences: A014778 A014779 A014780 this_sequence A014782 A014783 A014784
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KEYWORD
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tabf,nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Mike Domaratzki (mdomaratzki(AT)alumni.uwaterloo.ca), Nov 18 2001
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