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Search: id:A009946
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| A009946 |
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Coordination sequence for NiAs(2), Ni position. |
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+0
1
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| 1, 6, 20, 42, 74, 114, 164, 222, 290, 366, 452, 546, 650, 762, 884, 1014, 1154, 1302, 1460, 1626, 1802, 1986, 2180, 2382, 2594, 2814, 3044, 3282, 3530, 3786, 4052, 4326, 4610, 4902, 5204, 5514, 5834, 6162, 6500, 6846, 7202, 7566, 7940, 8322, 8714
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OFFSET
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0,2
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REFERENCES
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Gmelin Handbook of Inorg. and Organomet. Chem., 8th Ed., 1994, TYPIX search code (194) hP4
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LINKS
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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
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a(0)=1, a(4n)=2*((6n)^2+1), a(4n+2)=18*(2n+1)^2+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
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Sequence in context: A077539 A002943 A068377 this_sequence A094274 A094279 A093913
Adjacent sequences: A009943 A009944 A009945 this_sequence A009947 A009948 A009949
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KEYWORD
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nonn
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AUTHOR
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rwgk(AT)cci.lbl.gov (R.W. Grosse-Kunstleve)
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