a(n) = 12*a(n-1) - 12*a(n-2), a(0)=0, a(1)=1.

A190873

a(n) = 12*a(n-1) - 12*a(n-2), a(0)=0, a(1)=1.

Terms

    a(0) =0a(1) =1a(2) =12a(3) =132a(4) =1440a(5) =15696a(6) =171072a(7) =1864512a(8) =20321280a(9) =221481216a(10) =2413919232a(11) =26309256192a(12) =286744043520

External references