327678

Appears in sequences

• a(n) = 5*2^n - 2.at n=16A051633
• Number of palindromes (in base 4) below 4^n.at n=16A117863
• Start with 1, then alternately add 2 or double.at n=33A123208
• a(n) = 5*2^(n-2) - 2 for n > 1, with a(1) = 1.at n=17A131051
• Row sums of triangle A134061.at n=16A134062