365088395domain: NAppears in sequencesNumber of multiples of 3 in 0..2^n-1 with an even sum of base-2 digits.at n=31A036557Expansion of (1 - 5*x + 5*x^2)/((1-x)*(1-3*x)*(1-4*x)).at n=15A085282a(n) = Sum_{2*i+3*j=n, 0<=i<=n, 0<=j<=n} n!/( (2*i)!*(3*j)! ).at n=31A094715