30233087

Properties

Appears in sequences

• Numbers of the form i*6^j-1 (i=1..5, j >= 0).at n=47A181288
• Primes of the form 3*6^k - 1.at n=6A186104
• Primes of the form k*6^m - 1, where k is a Mersenne prime (A000668) and m >= 0.at n=12A186687
• a(n) = 3*6^n-1.at n=9A198796
• Numbers that can be written as 2*a^2 - 1 and 3*b^3 - 1.at n=6A345702
• Prime numbersat n=1871469