// time = 0.111 seconds

data[64]:=[*
<64, 1, 1, [ -1 ], 0, [
<2, x>,
<3, x>,
<5, x - 2>,
<7, x>,
<11, x>,
<13, x + 6>,
<17, x - 2>,
<19, x>
]>
*];