909845

Appears in sequences

• a(n) = Sum_{k=0..n} C(n-k,3k).at n=25A003522
• Quintisection of 1/(1-x^3-x^4).at n=15A099101
• Expansion of x/(1 - 2*x^2 - x^3 + x^4).at n=37A122514