282359

Appears in sequences

• a(n) = 14*a(n-1) - a(n-2) + 6 for n>1, a(0)=0, a(1)=7.at n=5A001921
• Expansion of (1-x)^2/((1+x^2)*(1-4*x+x^2)).at n=10A099488
• Numbers n such that phi(n) = 3*phi(n+1).at n=30A256907