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Search: id:A033598
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| A033598 |
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Coordination sequence T1 for Zeolite Code ACO. |
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+0
1
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| 1, 4, 9, 19, 35, 52, 72, 100, 131, 163, 201, 244, 290, 340, 393, 451, 515, 580, 648, 724, 803, 883, 969, 1060, 1154, 1252, 1353, 1459, 1571, 1684, 1800, 1924, 2051, 2179, 2313, 2452, 2594, 2740, 2889, 3043, 3203, 3364, 3528, 3700, 3875, 4051, 4233
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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R. W. Grosse-Kunstleve, Coordination Sequences and Encyclopedia of Integer Sequences
International Zeolite Association, Database of Zeolite Structures
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FORMULA
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For n>2, a(n) = 2n^2 - 4n + 4 + p(n), with the 12-periodic sequence p(n>=3) = {-1, 1, 0, -2, 0, 1, -1, -1, 0, 0, 0, -1}.
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CROSSREFS
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Sequence in context: A009920 A008036 A009863 this_sequence A057310 A008084 A008203
Adjacent sequences: A033595 A033596 A033597 this_sequence A033599 A033600 A033601
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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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