229725domain: NAppears in sequencesExpansion of g.f. (1-x^2)/(1-x-2*x^2+x^3).at n=22A028495Expansion of (1-2*x)*(1-x)/(1-5*x+6*x^2-x^3).at n=11A052975Number of palindromic compositions of n with parts in {1,2,4,6,8,10,...}.at n=45A276055G.f.: Sum_{n>=0} (n+1)*(n+2)*(n+3)/3! * (x + x^n)^n.at n=52A325999