38459

Properties

Appears in sequences

• T(n,1) + T(n,2) + ... T(n,n), where T is the array in A026098.at n=37A026101
• Primes p that have exactly three primitive roots that are not primitive roots mod p^2.at n=18A060519
• n^4 + n-th prime.at n=13A089621
• The lesser of twin primes p such that p*q+a+b+c are also the lesser of twin primes, (p and q are twin primes, p+2=q, a=p-1,b=(p+q)/2,c=q+1).at n=30A168536
• Lesser of twin prime pairs of the form (40n - 21, 40n - 19).at n=48A250025
• Let N(p,i) denote the result of applying "nextprime" i times to p; a(n) = smallest prime p such that N(p,4) - p = 2*n, or -1 if no such prime exists.at n=48A339944
• a(n) = A054108(n) + 4*(-1)^n.at n=7A349554
• Numbers k > 1 such that A354833(k) = k * A354833(k-1).at n=15A355457
• Prime numbersat n=4057