43319

Properties

Appears in sequences

• Primes p such that p and p+2 are twin primes and also the strings 987654321p and 987654321p+2 are twin primes.at n=16A103818
• Primes p such that continued fraction of (1 + sqrt(p))/2 has period 16 : primes in A146339.at n=21A146361
• a(n) = 30*n^2 - 1.at n=37A158560
• Primes p of the form 4*k+3 such that p+2 is prime and p-1 is nonsquarefree.at n=35A175606
• Number of 3 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.at n=32A239987
• Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4 or 7 king-move adjacent elements, with upper left element zero.at n=8A298498
• Prime numbersat n=4520