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Search: id:A133240
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| A133240 |
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Dimensions of certain Lie algebra (see reference for precise definition). |
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2
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| 1, 133, 7371, 238602, 5248750, 85709988, 1101296924, 11604306012, 103402141164, 797856027500, 5431803835220, 33125614508610, 183226228734150, 928793118827175, 4352687787515625, 18999500104801125, 77742635367237750, 299864450702202750
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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J. M. Landsberg and L. Manivel, The sextonions and E7 1/2, Adv. Math. 201 (2006), 143-179. [Th. 7.1, case a=4; Th. 7.2(i), case a=8]
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MAPLE
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b:=binomial; t71:= proc(a, k) ((3*a+2*k+5)/(3*a+5)) * b(k+2*a+3, k)*b(k+5*a/2+3, k)*b(k+3*a+4, k)/(b(k+a/2+1, k)*b(k+a+1, k)); end; [seq(t71(4, k), k=0..30)];
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CROSSREFS
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Sequence in context: A038491 A020265 A028295 this_sequence A129050 A129049 A015264
Adjacent sequences: A133237 A133238 A133239 this_sequence A133241 A133242 A133243
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KEYWORD
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nonn
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AUTHOR
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njas, Oct 15 2007
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