12124160

Appears in sequences

• a(n) = T(n,3), array T as in A049600.at n=17A049612
• a(n)=4*(a(n-1)a(n-3)-a(n-2)^2)/a(n-4), a(1)=a(2)=a(3)=1, a(4)=-4.at n=9A160567