-13035

Appears in sequences

• Triangle T(n,k), read by rows, formed by setting all entries in the zeroth column and in the main diagonal ((n,n) entries) to 1 and defining the rest of the entries by the recursion T(n,k) = T(n-1,k) - T(n,k-1).at n=75A096470
• Alternating sum of octagonal pyramidal numbers.at n=29A269429