226070

Appears in sequences

• Expansion of 1 / ((1-x)*(1-x+x^2+x^3)).at n=41A077872
• Expansion of (1-x)^(-1)/(1+x+x^2-x^3).at n=43A077908
• Binary representation of a(n) equals first n+1 terms of A051023.at n=17A092539