-11004domain: ZAppears in sequencesCoefficients of square root of theta series of D_4 (see A004011).at n=4A108096G.f.: (1+x^2)^2*(x^4-6*x^3+1)/(x^2-1)^4.at n=29A115046Triangle T(n, k) = binomial(n, k) * Sum_{j=k..n} StirlingS1(n, j)*StirlingS1(j, k), read by rows.at n=15A142472