110879

Properties

Appears in sequences

• Smaller of twin primes whose middle term is a multiple of A002110(5)=2310.at n=9A060231
• Primes p such that p+1 is a highly composite number.at n=16A072828
• Primes p such that 11 is the largest of all prime factors of the numbers between p and the next prime (cf. A052248).at n=33A080187
• Primes p such that tau(p-1)+tau(p+1) is larger than for any previous term. (Smallest prime sandwiched between more composite numbers.)at n=34A090481
• Primes of the form p*q - p - q, where p and q are two successive primes.at n=18A096345
• a(n) = A126098(n) - 1.at n=25A117010
• Numbers n where either n or n+1 is divisible by the numbers from 1 to 12.at n=30A131662
• Numbers in A137365 but not in A137366.at n=12A138556
• Lesser of Twin prime numbers of the form : i^2+j^3, as sum of square and cube, if Greater Twin prime number also of the form : i^2+j^3, as sum of square and cube.at n=19A143799
• Primes which produce records in A157188, at index i=pi(a(n)) (pi=A000720).at n=8A157190
• Numbers k for which d(k-1) + d(k+1) is a record, where d(k) is the number of divisors of k.at n=43A189828
• a(n) is the smallest prime such that exactly n prime pairs (p,q) exist with a(n) = p * q + p + q.at n=13A198277
• Primes of the form n^2 - 10.at n=21A201313
• Numbers m such that m-2, m-1, m+1, m+2 cannot all be represented in the form x*y + x + y for values x, y with x >= y > 1.at n=20A256386
• Primes of the form 42*k^3 + 270*k^2 - 26436*k + 250703 in order of increasing k.at n=6A271144
• Numbers k where records occur for d(k+1)/d(k), where d(k) is A000005(k).at n=23A282531
• Lesser of twin primes p >= 3 for which sigma(p+1)/sigma(p-1) reaches record value, where sigma(n) is the divisor sum function (A000203).at n=4A326391
• Lesser of twin primes p for which sigma(p+1)/sigma(p) reaches record value, where sigma(n) is the divisor sum function (A000203).at n=16A326392
• Primes p for which sigma(p+1)/sigma(p) reaches a record value, where sigma(k) is the divisor sum function (A000203).at n=20A326393
• Lesser of twin primes p such that d(p+1) > d(q+1) for all lessers of twin primes q < p, where d(n) is the number of divisors of n (A000005).at n=21A328329