OFFSET
0,3
LINKS
Milan Janjic, Two Enumerative Functions
FORMULA
Conjecture: -(n+3)*(n-1)*a(n) +(7*n^2+8*n-9)*a(n-1) +(-7*n^2+8*n+9)*a(n-2) +(n+1)*(n-3)*a(n-3)=0. - R. J. Mathar, Oct 26 2015
Conjecture: +n*(n+3)*(n-1)*a(n) -(2*n+1)*(3*n^2+3*n-4)*a(n-1) +(n-2)*(n+2)*(n+1)*a(n-2)=0. - R. J. Mathar, Oct 26 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved