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
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 (12, 4, 48).
FORMULA
a(n) = 12a(n-1) + 4a(n-2) + 48a(n-3), n>7.
G.f.: 4x*(1+20x^2+12x^3+48x^5+24x^6)/(1-12x-4x^2-48x^3). [From R. J. Mathar, Dec 16 2008]
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved