39146838

Appears in sequences

• a(n) = a(n-1) + 4*a(n-2) - 4*a(n-3) for n > 2; a(0)=2, a(1)=3, a(2)=6.at n=25A137208
• a(n) = a(n-1) + 2*a(n-2) with a(0)=3, a(1)=4.at n=24A171160
• Records in A268865.at n=13A268866
• a(n) = (2 + 7*4^n)/3.at n=12A308124