Square array T(n,k) (n >= 1, k >= 0) read by antidiagonals: coordination sequence for root lattice A_n.
A103881
Square array T(n,k) (n >= 1, k >= 0) read by antidiagonals: coordination sequence for root lattice A_n.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =2a(6) =1a(7) =12a(8) =12a(9) =2a(10) =1a(11) =20a(12) =42a(13) =18a(14) =2a(15) =1a(16) =30a(17) =110a(18) =92a(19) =24a(20) =2a(21) =1a(22) =42a(23) =240a(24) =340a(25) =162a(26) =30a(27) =2a(28) =1a(29) =56
External references
- oeis: A103881