142543

Properties

Appears in sequences

• a(n) and a(n)+4^k are primes at least for k=1,2,3,4.at n=34A049494
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5.at n=11A049495
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5,6.at n=4A049496
• a(n) and a(n)+4^k are primes at least for k=1,2,3,4,5,6,7.at n=3A049497
• Number of 2 X 2 matrices having all terms in {1,...,n} and determinant >n.at n=23A211060
• Primes p such that p+2^4, p+2^6, p+2^8 and p+2^10 are all primes.at n=32A269258
• 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=9A269259
• Primes p such that p+2^4, p+2^6, p+2^8, p+2^10, p+2^12 and p+2^14 are all primes.at n=5A269859
• Prime numbersat n=13226