22653

Appears in sequences

• Concatenations C1 and C2 and C3 are all prime (see the comment lines).at n=5A034818
• Divisors of 453060.at n=36A134950
• a(n) = 839*n.at n=27A135639
• Numbers k such that 16^k - 4^k - 1 is prime.at n=23A265482
• Least k such that sigma(k*n)/tau(k*n) = sigma(k*n+1)/tau(k*n+1), or 0 if no such k exists.at n=34A274774
• Sum of the second largest parts of the partitions of n into 10 squarefree parts.at n=50A326636
• Expansion of Product_{k>=1} B(x^k), where B(x) is the g.f. of A003106.at n=45A327691