Triangle of signed numbers used for the computation of the column sequences of triangle A090217.

A090435

Triangle of signed numbers used for the computation of the column sequences of triangle A090217.

Terms

    a(0) =1a(1) =-1a(2) =6a(3) =1a(4) =-48a(5) =147a(6) =-5a(7) =1584a(8) =-24255a(9) =50176a(10) =1a(11) =-1980a(12) =121275a(13) =-1003520a(14) =1571724a(15) =-41a(16) =496980a(17) =-113458275a(18) =2950635520a(19) =-16174611684a(20) =20412000000a(21) =45182a(22) =-3322062810

External references