32369

Properties

Appears in sequences

• Replace 2n+1 with concatenation of its divisors >1.at n=34A037287
• Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264].at n=31A078848
• Primes in which the digit string can be partitioned into three parts such that third (least significant) part is the product of the first two.at n=24A088294
• Primes p such that p + 2, 18*p^2 + 1, and 18*(p+2)^2 + 1 are all primes.at n=13A115272
• Numbers n such that f(n), f(n+1) and f(n+2) are prime, f(m)=72*m^2+7.at n=34A121089
• a(n) = 28*n^2 + 1.at n=34A158556
• Primes of the form 7n^2 + 1.at n=16A201602
• Primes of the form p*q - 30, where p and q are consecutive primes.at n=22A229613
• Primes p such that p+2, p+8, and p+12 are all prime.at n=39A233540
• Iterative procedure in A316941 applied to the odd composite numbers (A071904) (a(n) = -1 if no prime is ever reached).at n=33A276662
• a(n) = (4*n^3 + 12*n^2 - 4*n + 3)/3.at n=28A322594
• Beginning with 11, least prime such that concatenation of first n terms and its digit reversal both are primes.at n=32A380227
• Prime numbersat n=3473