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Search: id:A022146
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| A022146 |
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Coordination sequence for root lattice B_4. |
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+0
4
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| 1, 32, 224, 768, 1856, 3680, 6432, 10304, 15488, 22176, 30560, 40832, 53184, 67808, 84896, 104640, 127232, 152864, 181728, 214016, 249920, 289632, 333344, 381248, 433536, 490400, 552032, 618624, 690368
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OFFSET
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0,2
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REFERENCES
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R. Bacher, P. de la Harpe and B. Venkov, Series de croissance et series d'Ehrhart associees aux reseaux de racines, C. R. Acad. Sci. Paris, 325 (Series 1) (1997), 1137-1142.
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FORMULA
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a(0) = 1, a(n) = 32n^3 - 16n^2 + 16n. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Sep 03 2003
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CROSSREFS
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Sequence in context: A160538 A146089 A070053 this_sequence A160061 A060622 A118999
Adjacent sequences: A022143 A022144 A022145 this_sequence A022147 A022148 A022149
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KEYWORD
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nonn
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AUTHOR
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mbaake(AT)sunelc3.tphys.physik.uni-tuebingen.de (Michael Baake)
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