OFFSET
1,11
COMMENTS
Permuting the symbols will not change the structure.
REFERENCES
M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]
LINKS
Index entries for linear recurrences with constant coefficients, signature (1,14,-14,-71,71,154,-154,-120,120).
FORMULA
stirling2( [(n+1)/2], 5).
G.f.: -x^9/((x-1)*(2*x-1)*(2*x+1)*(2*x^2-1)*(3*x^2-1)*(5*x^2-1)). [Colin Barker, Jul 24 2012]
MATHEMATICA
Table[StirlingS2[Floor[(n+1)/2], 5], {n, 40}] (* Harvey P. Dale, Dec 18 2012 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved