82559

Properties

Appears in sequences

• a(1)=1, a(2)=2, a(n+2)=(a(n+1)+a(n))/2 if a(n+1)+a(n) is even, a(n+2)=(3*(a(n+1)+a(n))+1)/2 otherwise.at n=29A069162
• Primes p such that p+2, (p^2-1)/2+p and (p^2+3)/2+3*p are also prime.at n=24A352948
• Number of n edge connected achiral planar maps with an external face in which all internal faces are triangles.at n=26A378342
• Prime numbersat n=8070