-2512

Appears in sequences

• Expansion of (1-x)^(-1)/(1-x^2+x^3).at n=33A077883
• Triangle read by rows: n-th row (n>=0) gives coefficients of characteristic polynomial of n X n generalized Cartan matrix M defined in Comments.at n=58A136678
• a(n) = n^3-((n-1)^3+(n-2)^3+(n-3)^3).at n=13A147974
• Square array A(n, k) = A329644(prime(n)^k), read by falling antidiagonals: (1,1), (1,2), (2,1), (1,3), (2,2), (3,1), ...at n=58A329637