902339domain: NAppears in sequencesMinimum positive value of lcm{1,...,n}*(s_1/1 + ... + s_n/n), where each s_i equals 1 or -1.at n=32A061194Numerator of smallest nonnegative fraction of form +- 1 +- 1/2 +- 1/3 ... +- 1/n.at n=33A232111Number of tilings of a 30 X n rectangle using 3n decominoes of shape I.at n=25A251079