57900

Appears in sequences

• Triangle read by rows: T(n,k) = number of labeled semigroups of order n with k idempotents.at n=13A058166
• Values of k such that k - 1 and k + 1 are twin primes and 3*k^9 - 1 and 3*k^9 + 1 are also twin primes.at n=3A108134
• a(n) = prime(prime(prime(A028815(n) - 1) - 1) - 1) - 1.at n=33A141133
• Number of partitions of n where the difference between consecutive parts is at most 8.at n=44A238868
• Number of odd parts in the partitions of n into 9 parts.at n=48A309656