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A035708 Coordination sequence for 13-dimensional cubic lattice. 1
1, 26, 338, 2938, 19266, 101946, 454610, 1761370, 6065410, 18892250, 53972178, 143027898, 354870594, 830764794, 1847023698, 3921503898, 7988589570, 15677993370, 29746958930, 54734043130, 97926519106, 170763634106, 290835675858 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (pdf).
Joan Serra-Sagrista, Enumeration of lattice points in l_1 norm, Inf. Proc. Lett. 76 (1-2) (2000) 39-44.
Index entries for linear recurrences with constant coefficients, signature (13, -78, 286, -715, 1287, -1716, 1716, -1287, 715, -286, 78, -13, 1).
FORMULA
G.f.: ((1+x)/(1-x))^13.
n*a(n) = 26*a(n-1) + (n-2)*a(n-2) for n > 1. - Seiichi Manyama, Aug 18 2018
MATHEMATICA
CoefficientList[Series[((1+x)/(1-x))^13, {x, 0, 30}], x] (* or *) LinearRecurrence[ {13, -78, 286, -715, 1287, -1716, 1716, -1287, 715, -286, 78, -13, 1}, {1, 26, 338, 2938, 19266, 101946, 454610, 1761370, 6065410, 18892250, 53972178, 143027898, 354870594, 830764794}, 30] (* Harvey P. Dale, Nov 07 2017 *)
CROSSREFS
Cf. A035750, A266213 (row 13).
Sequence in context: A205494 A125438 A126919 * A252826 A042306 A329300
KEYWORD
nonn,easy
AUTHOR
Joan Serra-Sagrista (jserra(AT)ccd.uab.es)
EXTENSIONS
Recomputed by N. J. A. Sloane, Nov 25 1998
STATUS
approved

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Last modified April 21 11:18 EDT 2024. Contains 371853 sequences. (Running on oeis4.)