206551

Properties

Appears in sequences

• Primes p such that p+1, p+2, p+3 and p+4 have equal number of divisors.at n=26A119728
• a(n) = 2 + (89040 + (71868 + (29932 + (8449 + (1960 + (322 + (28 + n)*n)*n)*n)*n)*n)*n)*n/40320.at n=14A145130
• Prime numbersat n=18517