258349

Appears in sequences

• a(1)=a(2)=1, a(n)=a(n-1)+a(n-2) if n is not congruent to 3, a(n)=a(n-1)+a(n/3) if n is congruent to 3.at n=33A078913
• Coefficient of x^n in the expansion of ( (1-x+x^3) / (1-x) )^n.at n=17A372413