121089

Appears in sequences

• Largest n-digit number - largest n-digit triangular number.at n=9A095866
• Sum of trapezoid weights of all Motzkin paths of length n.at n=12A104574
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (1, -1, 1), (1, 1, -1), (1, 1, 1)}.at n=9A149654