pp \%stats;;
{
  21  => 1,
  27  => 1,
  32  => 1,
  33  => 1,
  36  => 1,
  38  => 1,
  39  => 2,
  41  => 1,
  42  => 2,
  43  => 1,
  44  => 1,
  45  => 2,
  47  => 2,
  48  => 2,
  49  => 1,
  50  => 2,
  51  => 3,
  52  => 1,
  53  => 3,
  54  => 4,
  55  => 1,
  56  => 3,
  57  => 5,
  58  => 2,
  59  => 4,
  60  => 5,
  61  => 3,
  62  => 5,
  63  => 7,
  64  => 3,
  65  => 6,
  66  => 6,
  67  => 4,
  68  => 7,
  69  => 9,
  70  => 4,
  71  => 8,
  72  => 10,
  73  => 6,
  74  => 10,
 ...
  302 => 3024,
  303 => 3065,
  304 => 2978,
  305 => 3110,
  306 => 3140,
  307 => 3060,
  308 => 3188,
  309 => 3226,
  310 => 3136,
  311 => 3267,
  312 => 3300,
  313 => 3217,
  314 => 3344,
  315 => 3379,
  316 => 3286,
  317 => 3419,
  318 => 3449,
  319 => 3363,
  320 => 3489,
  321 => 3522,
  322 => 3427,
  323 => 3561,
  324 => 3588,
  325 => 3497,
  326 => 3621,
  327 => 3654,
  328 => 3557,
  329 => 3687,
  330 => 3712,
  331 => 3616,
  332 => 3741,
  333 => 3772,
  334 => 3671,
  335 => 3798,
  336 => 3818,
  337 => 3722,
  338 => 3845,
  339 => 3872,
  340 => 3766,
  341 => 3890,
  342 => 3910,
  343 => 3811,
  344 => 3930,
  345 => 3951,
  346 => 3841,
  347 => 3965,
  348 => 3982,
  349 => 3878,
  350 => 3991,
  351 => 4009,
  352 => 3899,
  353 => 4019,
  354 => 4030,
  355 => 3921,
  356 => 4031,
  357 => 4047,
  358 => 3934,
  359 => 4047,
  360 => 4053,
  361 => 3942,
  362 => 4049,
  363 => 4061,
  364 => 3943,
  365 => 4050,
  366 => 4052,
  367 => 3940,
  368 => 4042,
  369 => 4047,
  370 => 3926,
  371 => 4027,
  372 => 4027,
  373 => 3912,
  374 => 4006,
  375 => 4007,
  376 => 3883,
  377 => 3980,
  378 => 3975,
  379 => 3857,
  380 => 3944,
  381 => 3939,
  382 => 3816,
  383 => 3906,
  384 => 3896,
  385 => 3774,
  386 => 3854,
  387 => 3847,
  388 => 3722,
  389 => 3805,
  390 => 3788,
  391 => 3665,
  392 => 3740,
  393 => 3729,
  394 => 3602,
  395 => 3675,
  396 => 3655,
  397 => 3533,
  398 => 3601,
  399 => 3584,
  400 => 3456,
  401 => 3521,
  402 => 3499,
  403 => 3378,
  404 => 3437,
  405 => 3414,
  406 => 3286,
  407 => 3347,
  408 => 3320,
  409 => 3199,
  410 => 3249,
  411 => 3223,
  412 => 3099,
  413 => 3151,
  414 => 3121,
...
  534 => 10,
  535 => 7,
  536 => 7,
  537 => 6,
  538 => 4,
  539 => 4,
  540 => 4,
  541 => 2,
  542 => 2,
  543 => 2,
  544 => 1,
  545 => 1,
  546 => 1,
}