201821

Properties

Appears in sequences

• Initial members p of prime 5-tuples (p, p+2, p+6, p+8, p+12).at n=14A022006
• Expansion of 1/((1-5x)(1-8x)(1-9x)(1-12x)).at n=4A028192
• Prime numbers p such that the number of partitions of p is also a prime.at n=20A038601
• Primes at which difference pattern X2424Y (X and Y >= 6) occurs in A001223.at n=8A052167
• Primes p such that three (the maximum number) primes occur between p and p+12.at n=26A086140
• Prime numbersat n=18129