A069704 - cp's OEIS frontend

A069704 Let M_2n be the 2n X 2n matrix M_(i,j)=C(2i,j)-C(2j,i) where C(k,l) denotes the binomial coefficients; then a(n)=det(M_2n).

%I A069704 #5 Mar 30 2012 18:38:57
%S A069704 9,2401,7139584,7429060864,8768304271322176,
%T A069704 55287838983612748529926144,28712457542131501655125523112656896,
%U A069704 597353290725130889841630014909751870078582784
%N A069704 Let M_2n be the 2n X 2n matrix M_(i,j)=C(2i,j)-C(2j,i) where C(k,l) denotes the binomial coefficients; then a(n)=det(M_2n).
%C A069704 det(M_{2n+1})=0
%Y A069704 Cf. A005249, A060739, A067689.
%K A069704 easy,nonn
%O A069704 1,1
%A A069704 _Benoit Cloitre_, Apr 21 2002

cp's OEIS Frontend

A069704 Let M_2n be the 2n X 2n matrix M_(i,j)=C(2i,j)-C(2j,i) where C(k,l) denotes the binomial coefficients; then a(n)=det(M_2n).