13211798

Appears in sequences

• a(n) = A153880(A265905(n)); also the first differences of A265905.at n=8A265906
• Square array A(1,k) = A265905(k), A(n>1,k) = A(n-1, k+1) - A(n-1, k); successive differences of A265905 read by descending antidiagonals as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ...at n=46A275950
• Transpose of array A275950.at n=53A275951