87151

Properties

Appears in sequences

• Numbers n such that 115*2^n-1 is prime.at n=26A050583
• Right diagonal of triangle in A072467.at n=34A072469
• Primes of the form (p^2 - 1)/8 - p, where p is also a prime.at n=31A165567
• The least number s > 1 having exactly n fives in the periodic part of the continued fraction of sqrt(s).at n=38A206585
• Smallest odd prime number Q such that Q*2^P-1 is also prime with P Mersenne prime exponent A000043(n).at n=19A249383
• Centered 25-gonal primes.at n=20A276264
• a(n) = a(n-1) + a(n-2) + a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=23A298338
• Prime numbersat n=8464