166788

Appears in sequences

• Number of n X 2 (0,1,2) arrays of permanents of 2 X 2 subblocks of some (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=20A227021
• a(n) is the sum over all partitions of n of the number of right angles that are not the largest right angle.at n=42A330378