184661

Appears in sequences

• Number of ways to partition n elements into pie slices of different sizes.at n=42A032153
• Number of n X 3 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 4 binary array having determinant equal to one, with rows and columns of the latter in nondecreasing lexicographic order.at n=12A227638