36449279

Properties

Appears in sequences

• a(n) is the least prime of class n-, according to the Erdős-Selfridge classification of primes.at n=12A056637
• a(n) = n-th prime of class 13- according to the Erdős-Selfridge classification.at n=0A081641
• Let f(p) = greatest prime divisor of p-1. Sequence gives smallest prime which takes at least n steps to reach 2 when f is iterated.at n=13A082449
• Primes of the form 64*k-1 such that 4*k-1, 8*k-1, 16*k-1 and 32*k-1 are also primes.at n=22A101999
• Smallest k such that 3^^n is not congruent to 3^^(n-1) mod k, where 3^^n denotes the power tower 3^3^...^3 (in which 3 appears n times).at n=13A246491
• Smallest k such that 6^^n is not congruent to 6^^(n-1) mod k, where 6^^n denotes the power tower 6^6^...^6 (in which 6 appears n times).at n=12A246494
• Smallest k such that 9^^n is not congruent to 9^^(n-1) mod k, where 9^^n denotes the power tower 9^9^...^9 (in which 9 appears n times).at n=12A246497
• Prime numbersat n=2230095