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Search: id:A008419
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| A008419 |
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Crystal ball sequence for 9-dimensional cubic lattice. |
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+0
1
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| 1, 19, 181, 1159, 5641, 22363, 75517, 224143, 598417, 1462563, 3317445, 7059735, 14218905, 27298155, 50250765, 89129247, 152951073, 254831667, 413442773, 654862247, 1014889769, 1541911931
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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T. D. Noe, Table of n, a(n) for n=0..1000
Index entries for crystal ball sequences
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
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G.f.: (1+x)^9/(1-x)^10.
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CROSSREFS
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Sequence in context: A133740 A125382 A126540 this_sequence A034273 A139619 A121039
Adjacent sequences: A008416 A008417 A008418 this_sequence A008420 A008421 A008422
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KEYWORD
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nonn,easy
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AUTHOR
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njas
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