|
%I #5 Jun 08 2016 15:48:38
%S 1,30,651,12600,235494,4396140,83471850,1627358040,32754696975,
%T 682573101210,14749179169725,330654317994000,7691170398011100,
%U 185559161386599000,4641068950134516900,120256269348313098000
%N Sixth column (m=5) of unsigned triangle A111595.
%F E.g.f. (1/sqrt(1-x^2))*((x/(1-x))^5)/5!.
%F a(n)=(n!/5!)*sum(binomial(2*k, k)*binomial(n-2*k-1, 4)/(4^k), k=0..floor((n-5)/2)), n>=5.
%F Conjecture: +(-n+5)*a(n) +5*n*a(n-1) +n*(n-1)^2*a(n-2)=0. - _R. J. Mathar_, Jun 08 2016
%K nonn,easy
%O 5,2
%A _Wolfdieter Lang_, Aug 23 2005
|
