60171

Appears in sequences

• [ n(n-1)(n-2)(n-3)/7 ].at n=27A011917
• Triangle read by rows where row n is the largest (or middle or n-th) column of the reverse pyramid summation of order n described in A359087.at n=63A360145
• Number of binary strings of length n in which the number of substrings 00 is one more than that of substrings 01.at n=19A370048