1083136

Appears in sequences

• Shifts left when Dirichlet convolution (DC:(b,b)->a) applied 4 times.at n=6A144318
• 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 Dirichlet convolution (DC:(b,b)->a) applied k times.at n=51A144324