191952domain: NAppears in sequencesTheta series of Niemeier lattice of type A_7^2 D_5^2.at n=2A008698Expansion of g.f. (3-4*x-sqrt(1-4*x^2))/(2*(1-2*x)^2).at n=15A182555Number of maximal squarefree words of length n over the alphabet {0,1,2}.at n=48A282212