T(n,k) is the number of strictly increasing arrangements of n numbers in -(n+k-2)..(n+k-2) with sum zero.
A188181
T(n,k) is the number of strictly increasing arrangements of n numbers in -(n+k-2)..(n+k-2) with sum zero.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =1a(7) =3a(8) =5a(9) =5a(10) =1a(11) =4a(12) =8a(13) =12a(14) =12a(15) =1a(16) =5a(17) =13a(18) =24a(19) =32a(20) =32a(21) =1a(22) =6a(23) =18a(24) =43a(25) =73a(26) =94a(27) =94a(28) =1a(29) =7
External references
- oeis: A188181