Right edge of triangle A240673: a(n) = A002110(n-1) * A079276(n).

A391734

Right edge of triangle A240673: a(n) = A002110(n-1) * A079276(n).

Terms

    a(0) =1a(1) =4a(2) =6a(3) =120a(4) =210a(5) =6930a(6) =450450a(7) =9189180a(8) =193993800a(9) =2677114440a(10) =116454478140

External references