59688domain: NAppears in sequencesa(n)=T(2n,n+1), where T is given by A048113.at n=10A048120Arithmetic mean of first n terms of A001414 is an integer.at n=14A065131Expansion of 1 / ((1-x)*(1-x+x^2+x^3)).at n=39A077872Expansion of (1-x)^(-1)/(1+x+x^2-x^3).at n=41A077908