A049608 - OEIS

%I #7 Oct 26 2015 08:44:43

%S 0,1,6,34,190,1059,5908,33028,185076,1039525,5851626,33006438,

%T 186519138,1055789511,5985405000,33979107336,193143097288

%N a(n)=T(n,n+2), array T as in A049600.

%H Milan Janjic, <a href="http://www.pmfbl.org/janjic/">Two Enumerative Functions</a>

%F Conjecture: (n-1)*(2*n-1)*(n+2)*a(n) -12*n*(n-1)*(n+1)*a(n-1) +(n-2)*(2*n+1)*(n+1)*a(n-2)=0. - _R. J. Mathar_, Oct 26 2015

%K nonn

%O 0,3

%A _Clark Kimberling_