270601

Properties

Appears in sequences

• Greater prime factor of semiprimes in A089535.at n=2A089537
• a(n) = 1681*n^2 - 984*n - 696.at n=12A118060
• a(n+5) = a(n+4)+a(n+3)+a(n+2)+a(n+1)+2*a(n) with a(0)=0, a(1)=a(2)=a(3)=a(4)=1.at n=21A226310
• Centered 20-gonal (or icosagonal) primes.at n=35A264845
• Primes that can be generated by the concatenation in base 4, in ascending order, of two consecutive integers read in base 10.at n=30A287302
• Greatest prime dividing 2^n + n.at n=22A359685
• Odd primes whose base-2 representation has no proper substrings that are base-2 representations of odd primes.at n=24A365518
• Prime numbersat n=23696