-6537023domain: ZAppears in sequencesa(n) = Sum_{k=0..n} (-1)^k * binomial(n, k) * A000931(n-k+4).at n=29A144413a(n) = 2*a(n-1) - 3*a(n-2) + a(n-3), a(0) = 1, a(1) = 0, a(2) = -1.at n=39A233581