54941

Properties

Appears in sequences

• a(n) is the smallest prime factor of 1 + lcm(1..k) where k is the n-th prime power A000961(n).at n=20A051454
• Number of complete partitions of n.at n=44A126796
• Primes prime(k) such that the sum of the squares of digits of prime(k) equals the sum of the squares of digits of k.at n=23A193255
• Number of primes <= n-th Bell number.at n=11A277063
• Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=6A316645
• Number of nX7 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=4A316647
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=59A316648
• Numbers k such that (43^k - 2^k)/41 is prime.at n=3A377180
• Prime numbersat n=5585