OFFSET
1,1
REFERENCES
F. Faase, On the number of specific spanning subgraphs of the graphs G X P_n, Ars Combin. 49 (1998), 129-154.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..460
F. Faase, On the number of specific spanning subgraphs of the graphs G X P_n, Preliminary version of paper that appeared in Ars Combin. 49 (1998), 129-154.
F. Faase, Results from the counting program
Index entries for linear recurrences with constant coefficients, signature (145,516,-288).
FORMULA
Recurrence:
a(1) = 60,
a(2) = 12000,
a(3) = 1758360, and
a(n) = 145a(n-1) + 516a(n-2) - 288a(n-3).
G.f.: 60*x*(1+55*x-210*x^2)/(1-145*x-516*x^2+288*x^3). [R. J. Mathar, Feb 19 2009; corrected by Georg Fischer, May 12 2019]
MATHEMATICA
LinearRecurrence[{145, 516, -288}, {60, 12000, 1758360}, 20] (* Harvey P. Dale, Jun 16 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 03 2009
EXTENSIONS
More terms from R. J. Mathar, Feb 19 2009
STATUS
approved