%I A101799
%S A101799 2,7,136,30096,128231424,15917683507200,81063451589345280000,
%T A101799 22675515428700722036736000000,449302248871829829537656890982400000000,
%U A101799 790103237429135552913731284331032467210240000000000
%N A101799 a(n)= det[A000522(i+j+1)], i,j=0...n, is the Hankel determinant of order 
               n+1 of the arrangements numbers, s. A000522; a(n) = product( (p!)^2,
               p=0..n )*(n+1)!*LaguerreL(n+1,0,-1), n=0,1..., where LaguerreL(n,
               lambda,x) are generalized Laguerre polynomials; a(n)=A055209(n)*A002720(n+1);
               .
%Y A101799 Cf. A000522, A055209, A002720.
%Y A101799 Sequence in context: A000889 A041727 A120379 this_sequence A062617 A064607 
               A005345
%Y A101799 Adjacent sequences: A101796 A101797 A101798 this_sequence A101800 A101801 
               A101802
%K A101799 nonn
%O A101799 0,1
%A A101799 Karol A. Penson (penson(AT)lptl.jussieu.fr), Dec 16 2004