73361

Properties

Appears in sequences

• 6*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 5.at n=10A090775
• a(n) is the smallest lesser of twin prime p, such that prime(2 + p) - prime(p) = 2n (cf. A096474).at n=35A096475
• Primes p such that p+2, p^2 - 2p + 2, and p^2 - 2p + 4 are all prime.at n=22A101315
• Number of base 11 circular n-digit numbers with adjacent digits differing by 6 or less.at n=5A125399
• Expansion of exp(x)/(1 - x - x^2/2!), where a(n) = 1 + n*a(n-1) + C(n,2)*a(n-2).at n=7A128230
• Numbers n such that triangular numbers T(n), T(n+1) and T(n+2) are 3-almost primes.at n=21A255200
• Primes 8k + 1 at the end of the maximal gaps in A269424.at n=11A269426
• Least q > 0 such that min { x >= 0 | q + prime(n)*x + x^2 is composite } is a (local) maximum, cf. A273756 & A273770.at n=15A273595
• Least p for which min { x >= 0 | p + (2n+1)*x + x^2 is composite } reaches the (local) maximum given in A273770.at n=29A273756
• Prime numbersat n=7245