Column 1 of triangular matrix A102086, which shifts upward to exclude the main diagonal under matrix square.
A102087
Column 1 of triangular matrix A102086, which shifts upward to exclude the main diagonal under matrix square.
Terms
- a(0) =0a(1) =2a(2) =4a(3) =20a(4) =156a(5) =1664a(6) =22684a(7) =378572a(8) =7504640a(9) =172785512a(10) =4540756252a(11) =134330010172
External references
- oeis: A102087