47145

Appears in sequences

• Expansion of (1-x)/(1-x-x^2-x^3+x^4).at n=22A052527
• Consider the family of multigraphs enriched by the species of cycles. Sequence gives the triangle read by rows giving coefficients of polynomials arising from enumeration of those multigraphs on n edges.at n=44A098283
• Expansion of (1+4*x+x^2)/((1+x)^2*(1-x)^5).at n=27A233329