127621431

Appears in sequences

• Number of dispersed Dyck paths of length n (i.e., Motzkin paths of length n with no (1,0) steps at positive heights) having only ascents of even length (an ascent is a maximal sequence of consecutive (1,1)-steps).at n=45A191321
• Expansion of g^2/(1 - x*g^4), where g = 1+x*g^3 is the g.f. of A001764.at n=11A391128