Central factorial numbers: second right-hand column of triangle A008955.

A001819

Central factorial numbers: second right-hand column of triangle A008955.

Terms

    a(0) =0a(1) =1a(2) =5a(3) =49a(4) =820a(5) =21076a(6) =773136a(7) =38402064a(8) =2483133696a(9) =202759531776

External references