71838

Appears in sequences

• Coefficient of x^floor(n/2) in the expansion of (1+x+x^3)^n.at n=16A192440
• Number of tilings of a sphinx of order n by elementary sphinxes (i.e., sphinxes of order 1).at n=5A279887
• G.f.: Re(1/(1 + i*x/(1 + i*x^2/(1 + i*x^3/(1 + i*x^4/(1 + i*x^5/(1 + ...))))))), a continued fraction, where i is the imaginary unit.at n=41A293268
• Coefficient of x^n in the expansion of (1+x+x^3)^(2*n).at n=8A370185