383019

Appears in sequences

• a(n) = 7 + floor(Sum_{j=1..n-1} a(j) / 2).at n=27A120136
• Number of strings of length n over a three-letter alphabet that begin with a nontrivial palindrome.at n=12A248122
• G.f.: Product_{k>=1} 1/(1-x^k)^(2*k-1).at n=19A253289
• Expansion of Product_{k>=1} (1 + (1 + x + x^2) * x^k).at n=45A309173
• Expansion of Sum_{k>=0} x^(k^2) / Product_{j=1..k} (1 - x^j)^j.at n=52A318771