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A009945
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Coordination sequence for NiAs(2), As position.
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0
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1, 6, 18, 42, 74, 114, 162, 222, 290, 366, 450, 546, 650, 762, 882, 1014, 1154, 1302, 1458, 1626, 1802, 1986, 2178, 2382, 2594, 2814, 3042, 3282, 3530, 3786, 4050, 4326, 4610, 4902, 5202, 5514, 5834, 6162, 6498, 6846, 7202, 7566, 7938, 8322, 8714
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| Gmelin Handbook of Inorg. and Organomet. Chem., 8th Ed., 1994, TYPIX search code (194) hP4
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LINKS
| R. W. Grosse-Kunstleve, Coordination Sequences and Encyclopedia of Integer Sequences
R. W. Grosse-Kunstleve, G. O. Brunner and N. J. A. Sloane, Algebraic Description of Coordination Sequences and Exact Topological Densities for Zeolites, Acta Cryst., A52 (1996), pp. 879-889.
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FORMULA
| a(0)=1, a(4n)=2*((6n)^2+1), a(4n+2)=18*(2n+1)^2, a(2n+1)=6*(3n^2+3n+1). - Ralf Stephan (ralf(AT)ark.in-berlin.de), Mar 07 2004
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CROSSREFS
| Sequence in context: A023620 A074837 A015942 * A011930 A068293 A191101
Adjacent sequences: A009942 A009943 A009944 * A009946 A009947 A009948
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KEYWORD
| nonn
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AUTHOR
| rwgk(AT)cci.lbl.gov (R.W. Grosse-Kunstleve)
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