75041

Properties

Appears in sequences

• Generalized Pellian with second term equal to 5.at n=12A048655
• Expansion of (1+5*x)/(1-6*x+x^2).at n=6A054490
• Number of normal n X n (-1,0,1)-matrices.at n=3A055549
• Numbers k such that 2*k^2 + 14 is a square.at n=12A077446
• Primes with subscripts described in A098213.at n=8A099640
• Primes p such that q - p = 38, where q is the next prime after p.at n=13A134118
• Shifted Pell recurrence: a(n) = 2*a(n-2) + a(n-4).at n=24A135246
• Primes of the form x^2 + 5*y^2, where x and y=x+1 are consecutive natural numbers.at n=24A176608
• Primes of the form x^3 + y^3 - 1, where x and y are primes.at n=17A217718
• Smallest of four consecutive primes whose average is a triangular number.at n=35A226155
• a(n) = 2*a(n - 2) + a(n - 4) with a(0) = -1, a(1) = 1, a(2) = 3, a(3) = 5.at n=25A266505
• a(n) = 2*a(n-4) + a(n-8) for n >= 8.at n=51A266506
• Numbers k such that k, prime(k) and primepi(reverse(prime(k))) are emirps (A006567).at n=5A382389
• Prime numbersat n=7399