+static const int32_t derf_steps[96] = {
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 16,
+ 17, 19, 21, 23, 25, 28, 31, 34,
+ 37, 41, 45, 50, 55, 60, 66, 73,
+ 80, 88, 97, 107, 118, 130, 143, 157,
+ 173, 190, 209, 230, 253, 279, 307, 337,
+ 371, 408, 449, 494, 544, 598, 658, 724,
+ 796, 876, 963, 1060, 1166, 1282, 1411, 1552,
+ 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327,
+ 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132,
+ 7845, 8630, 9493, 10442, 11487, 12635, 13899, 15289,
+ 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767,
+};
+