A quadrisection of A158122: a(n) = A158122(4n).

A158212

A quadrisection of A158122: a(n) = A158122(4n).

Terms

    a(0) =1a(1) =2a(2) =-16a(3) =200a(4) =-3006a(5) =49956a(6) =-884352a(7) =16349648a(8) =-311986480a(9) =6098614912a(10) =-121497078016

External references