451640

Appears in sequences

• Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k LDU's (n >= 0; 0 <= k <= floor((n-1)/3) for n >= 1).at n=22A128735
• Number of skew Dyck paths of semilength n and having no LDU's.at n=11A128736
• a(n) = 576*n^2 + 2*n.at n=27A158369