7362801079domain: NAppears in sequences7th row of number array A083064.at n=11A083068Expansion of x*(1 + x)/((1-2*x)*(1+x+x^2)).at n=34A294627a(n) = a(n-1) + 2*a(n-2) if n even, or 3*a(n-1) + 4*a(n-2) if n odd, starting with 0, 1.at n=23A299913