43208

Appears in sequences

• Expansion of g.f. x^3/(1 - 2*x + x^3 - x^4).at n=17A059633
• a(0) = 1, a(n) = Sum_{k=1..n} a(n-k)*ceiling(sin(k)).at n=18A265826
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 531", based on the 5-celled von Neumann neighborhood.at n=35A272752
• a(n) = Sum_{-n<i<n, -n<j<n, gcd{i,j}=2} (n-|i|)*(n-|j|).at n=22A331772
• a(n) = Sum_{d|n} mu(n/d) * binomial(3*d,d) / (2*d+1).at n=7A346925
• Fixed points in A360519.at n=11A361105