// time = 0.199 seconds data[48]:=[* <48, 1, 1, [ 1, -1 ], 0, [ <2, x>, <3, x - 1>, <5, x + 2>, <7, x>, <11, x + 4>, <13, x + 2>, <17, x - 2>, <19, x - 4> ]> *];