761377

Properties

Appears in sequences

• Partition n labeled elements into sets of different sizes and order the sets.at n=11A032011
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5.at n=20A049495
• Let A = A025584. a(n) is the smallest A(m) such that the interval (A(m)*n, A(m+1)*n) contains no primes from A.at n=28A207820
• Number of ordered set partitions of {1,2,...,n} such that no part has the same size as any of its four immediate predecessors.at n=11A272432
• Number of ordered set partitions of {1,2,...,n} such that no part has the same size as any of its five immediate predecessors.at n=11A272433
• Number of ordered set partitions of {1,2,...,n} such that no part has the same size as any of its six immediate predecessors.at n=11A272434
• Prime numbersat n=61084