36218

Appears in sequences

• Number of 3-element ordered antichain covers of an unlabeled n-element set.at n=12A056074
• Indices of triple-safe primes: p=prime(n) is double-safe: q=(p-1)/2, r=(q-1)/2 and s=(r-1)/2 are all prime (and q is double-safe).at n=24A075134
• a(n) = (1/6)*(n+1)*(10*n^2 + 17*n + 12).at n=27A102296
• Number of partitions of n in which some but not all parts are equal.at n=40A167930
• Number of partitions p of n such that (number of numbers in p of form 3k) > (number of numbers in p of form 3k+1).at n=49A241745