449390

Appears in sequences

• Expansion of (1-2*x^3)/(1-2*x-x^3+2*x^4).at n=19A057744
• Numbers k such that A003313(k) = A003313(7*k).at n=17A116462
• Expansion of x*(1 + x)/((1-2*x)*(1+x+x^2)).at n=20A294627