a(n) = 20*a(n-1) - 98*a(n-2) for n > 1; a(0) = 1, a(1) = 12.

A163448

a(n) = 20*a(n-1) - 98*a(n-2) for n > 1; a(0) = 1, a(1) = 12.

Terms

    a(0) =1a(1) =12a(2) =142a(3) =1664a(4) =19364a(5) =224208a(6) =2586488a(7) =29757376a(8) =341671696a(9) =3917211072a(10) =44860395232a(11) =513321219584

External references