122449

Properties

Appears in sequences

• Primes of the form floor((7/6)^k).at n=14A067908
• Numbers k such that 4^k - 2^k - 1 is prime.at n=39A098845
• (a(2n+1)+a(2n))^2 = a(2n+1) a(2n) (concatenated, not multiplied).at n=34A112268
• Numbers k such that the concatenation of 6*k with k gives a square.at n=0A115545
• Primes of the form k^3-k^2-k-1.at n=9A162295
• Right part of the square of the n-th Kaprekar number.at n=24A194219
• Smallest odd prime number Q such that Q*2^P-1 is also prime with P Mersenne prime exponent A000043(n).at n=22A249383
• Primes p where q = p + 4 is also prime and rad((p+1)(p+2)(p+3)) < pq, where rad(k) is the largest squarefree number dividing k.at n=20A268350
• Prime numbersat n=11517