136936

Appears in sequences

• Total area below the lattice paths of length n defined by the rule [(0),(k)->(k-1)(k+1)] (Dyck paths).at n=13A094893
• Number of n X 3 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2.at n=13A274890
• a(n) = coefficient of x^n*y^n in Product_{n>=1} 1/(1 - (x^n + y^n)).at n=9A322211