Square array A(n,k), n>=1, k>=1, read by antidiagonals, with A(1,k)=1 and sequence a_k of column k shifts left when Euler transform applied k times.
A144042
Square array A(n,k), n>=1, k>=1, read by antidiagonals, with A(1,k)=1 and sequence a_k of column k shifts left when Euler transform applied k times.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =1a(7) =1a(8) =3a(9) =4a(10) =1a(11) =1a(12) =4a(13) =8a(14) =9a(15) =1a(16) =1a(17) =5a(18) =13a(19) =25a(20) =20a(21) =1a(22) =1a(23) =6a(24) =19a(25) =51a(26) =77a(27) =48a(28) =1a(29) =1
External references
- oeis: A144042