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Search: id:A033429
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| 0, 5, 20, 45, 80, 125, 180, 245, 320, 405, 500, 605, 720, 845, 980, 1125, 1280, 1445, 1620, 1805, 2000, 2205, 2420, 2645, 2880, 3125, 3380, 3645, 3920, 4205, 4500, 4805, 5120, 5445, 5780, 6125, 6480, 6845, 7220, 7605, 8000, 8405, 8820, 9245, 9680
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Number of edges of the complete bipartite graph of order 6n, K_n,5n - Roberto E. Martinez II (remartin(AT)fas.harvard.edu), Jan 07 2002
Number of edges of the complete tripartite graph of order 4n, K_n,n,2n - Roberto E. Martinez II (remartin(AT)fas.harvard.edu), Jan 07 2002
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REFERENCES
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L. Hogben, Choice and Chance by Cardpack and Chessboard. Vol. 1, Chanticleer Press, NY, 1950, p. 36.
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MAPLE
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seq(bell(3, j)*(j-2)^2, j = 2 .. 46) ; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 29 2007
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CROSSREFS
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Central column of A055096.
Sequence in context: A031082 A031304 A061188 this_sequence A005287 A134481 A062158
Adjacent sequences: A033426 A033427 A033428 this_sequence A033430 A033431 A033432
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KEYWORD
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nonn
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AUTHOR
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Jeff Burch (jmburch(AT)osprey.smcm.edu)
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EXTENSIONS
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Better description from njas May 15 1998
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