-26100domain: ZAppears in sequencesIrregular triangle read by rows: T(n,k) = [x^k]p_n(x), where (p_n(x)/x^(3n)) * exp(-1/x^2) is the n-th derivative of exp(-1/x^2), n >= 1, 0 <= k <= 2*n-2.at n=29A344031