329625

Appears in sequences

• Sum along upward diagonal of Pascal triangle to halfway point.at n=29A010754
• a(n) = T(2n,n), array T as in A038738.at n=7A038744
• 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, 0), (-1, 1, -1), (0, 0, -1), (0, 1, 0), (1, 0, 1)}.at n=10A150161