Особой роли не играет.
Их вот так примерно можно "перебрать" ( enumerate )
:0:
:2:
:3: :4: :5:
:6: :7: :9:
:10: :11: :12: :13:
:14: :15: :16: :17: :18:
:19: :20: :21: :22: :23: :24:
:25: :26: :27: :31:
:32: :33: :34: :35: :36: :37: :38: :39:
:40: :41: :42: :43: :44: :45: :46: :47: :48:
:49: :50: :51: :52: :53: :54: :55: :56: :57: :58: :59: :60: :61: :62: :63: :65: :66: :67: :68: :69: :70: :71:
:72: :73: :74: :75: :76: :77: :78: :79: :80: :81: :82: :83: :84: :85: :86: :87: :88: :89: :90: :91: :92: :93: :94: :95:
:96: :97: :98: :99: :100:
:115:
:127: :129:
:145: :147:
:163: :164: :165:
:170: :171: :172:
:193: :194:
:198:
:236:
:241: :243:
:247: :248: :249:
:253: :255: :256:
Ну и дальше , кажется , просто пусто.
:257: :258: :259:
Совсем даже и не пусто - может быть до 1024
:268: :269: :270: :272: :273:
:283: