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A035717
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Coordination sequence for 22-dimensional cubic lattice.
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0
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1, 44, 968, 14212, 156816, 1388508, 10286936, 65652532, 368804128, 1854105484, 8453107432, 35329425124, 136585481648, 492183451452, 1663935545976, 5307436592788, 16051394232896, 46227817361132
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| J. Serra-Sagrista, Enumeration of lattice points in l_1 norm, Information Processing Letters, 76, no. 1-2 (2000), 39-44.
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LINKS
| J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (Abstract, pdf, ps).
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FORMULA
| G.f.: ((1+x)/(1-x))^22.
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MATHEMATICA
| CoefficientList[Series[((x+1)/(1-x))^22, {x, 0, 20}], x] (* From Harvey P. Dale, Aug 20 2011 *)
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CROSSREFS
| Sequence in context: A010838 A191374 A010960 * A035611 A161679 A162182
Adjacent sequences: A035714 A035715 A035716 * A035718 A035719 A035720
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KEYWORD
| nonn,easy
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AUTHOR
| Serra-Sagrista, Joan; jserra(AT)ccd.uab.es
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EXTENSIONS
| Recomputed Nov 25 1998 by N. J. A. Sloane (njas(AT)research.att.com).
Clarified formula [by Harvey P. Dale, Aug 20 2011]
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