Row sums of triangle A105626.

A105628

Row sums of triangle A105626.

Terms

    a(0) =1a(1) =4a(2) =25a(3) =208a(4) =2152a(5) =26524a(6) =378700a(7) =6142948a(8) =111593932a(9) =2244992404a(10) =49561796380

External references