43079

Appears in sequences

• a(2n) = a(2n-1) + 3a(2n-2), a(2n+1) = 2a(2n) + 3a(2n-1).at n=12A002537
• Triangle T(n,k) = 3*binomial(n, k)^2 - binomial(n, k) - 1, read by rows.at n=58A144404
• Triangle T(n,k) = 3*binomial(n, k)^2 - binomial(n, k) - 1, read by rows.at n=62A144404
• a(n) = ((4 + sqrt(7))^n + (4 - sqrt(7))^n)/2.at n=6A146964
• a(n) = abs(a(n-1) - 3*a(n-2)) with a(1)=a(2)=1.at n=27A192263
• Moran numbers whose arithmetic derivative is also a Moran number (A001101).at n=24A349485