40177

Properties

Appears in sequences

• Greatest number having exactly n representations as ab+ac+bc with 0 < a < b < c.at n=23A094377
• Primes occurring in A084704 exactly 4 times.at n=21A128655
• Sum of the numbers already removed (including the target number) in the first jump of a Sieve of Eratosthenes table.at n=40A179654
• Primes of the form k*6^m +1 where k is a Mersenne prime (A000668) and m is an integer.at n=5A185167
• Primes p such that p+12, p+1234 and p+123456 are also prime.at n=15A236304
• a(n) = 31*n^2 + 1.at n=36A247155
• Prime numbers that have a decagonal (10 sides) Voronoi cell in the Voronoi diagram of the Ulam prime spiral.at n=9A257748
• Primes p such that p+2^4, p+2^6, p+2^8 and p+2^10 are all primes.at n=11A269258
• Primes p such that p+2^4, p+2^6, p+2^8, p+2^10 and p+2^12 are all primes.at n=4A269259
• The first of three consecutive primes the sum of which is equal to the sum of three consecutive triangular numbers.at n=22A298169
• Prime numbersat n=4221