609554401

Properties

Appears in sequences

• a(n) = (5^n - 3^n)/2.at n=13A005059
• Zsigmondy numbers for a = 5, b = 3: Zs(n, 5, 3) is the greatest divisor of 5^n - 3^n (A005058) that is relatively prime to 5^m - 3^m for all positive integers m < n.at n=12A109347
• For n>1, a(n) = 2*a(n-1) + 15*a(n-2); a(0)=1, a(1)=1.at n=13A120612
• Primes of the form (5^p-3^p)/2, where prime p = Prime[A123704[n]] = A121877[n].at n=0A123705
• a(n) is the least prime of the form ((2n+1)^k - (2n-1)^k)/2.at n=1A177224
• Prime numbersat n=31797423