41205

Appears in sequences

• Squarefree numbers of the form (prime(k)+1)*(prime(k+1)+1)/4.at n=18A079095
• Integers that do not appear in A103502.at n=22A103504
• Number of compositions of n into square parts k^2 where there are k sorts of part k^2.at n=25A240944
• The smallest positive number such that sopfr(|a(n) - n|) = sopfr(a(n) + n) and Omega(|a(n) - n|) = Omega(a(n) + n), where sopfr(k) is the sum of the primes dividing k, with repetition.at n=2A370504
• Tetraprimes (or products of exactly four distinct prime numbers) that are the sum of two successive tetraprimes.at n=18A380348