Square array read by antidiagonals upwards: T(n,k) is the number of right unique relations between set A with n elements and set B with k elements.
A329940
Square array read by antidiagonals upwards: T(n,k) is the number of right unique relations between set A with n elements and set B with k elements.
Terms
- a(0) =1a(1) =3a(2) =2a(3) =7a(4) =8a(5) =3a(6) =15a(7) =26a(8) =15a(9) =4a(10) =31a(11) =80a(12) =63a(13) =24a(14) =5a(15) =63a(16) =242a(17) =255a(18) =124a(19) =35a(20) =6a(21) =127a(22) =728a(23) =1023a(24) =624a(25) =215a(26) =48a(27) =7a(28) =255a(29) =2186
External references
- oeis: A329940