A113468 Least k such that n, n+k, n+2k and n+3k have the same number of divisors.

242, 213, 3445, 111, 8718, 5, 2001, 69, 3526, 299, 1074, 5, 2222, 537, 9177, 129, 4114, 5, 8, 598, 7843, 111, 1235, 10, 2984, 303, 3538, 417, 987, 7, 1771, 91, 7659, 57, 9269, 10, 2264, 145, 1197, 219, 1606, 5, 1826, 115, 8897, 203, 618, 5, 8, 159, 2673, 183