152576domain: NAppears in sequencesPartial sums of A014827.at n=7A052244Expansion of 1/(1 - 2*x + 2*x^2 - 2*x^3).at n=28A077943Expansion of 1/(1+2*x+2*x^2+2*x^3).at n=28A077993Expansion of the series reversion of x/(1 + x^2/(1 + x^3/(1 + x^4/(1 + x^5/(1 + ...))))), a continued fraction.at n=20A291377