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{
"source": "Conway and Sloane (1982), Tables 2 and 4, https://neilsloane.com/doc/Me102.pdf",
"exception": "The printed dimension-1 type-I mass is 1, and Theorem 2 also gives 1 there. The full integral group of Z has order 2, so the definition requires 1/2. King (2003), Table 6, and Finch (2005), page 3, agree with 1/2. Other entries are transcribed verbatim as rationals.",
"I": {
"1": "1/2",
"2": "1/8",
"3": "1/48",
"4": "1/384",
"5": "1/3840",
"6": "1/46080",
"7": "1/645120",
"8": "1/10321920",
"9": "17/2786918400",
"10": "1/2229534720",
"11": "31/735746457600",
"12": "31/5885971660800",
"13": "691/765176315904000",
"14": "42151/192824431607808000",
"15": "29713/385648863215616000",
"16": "505121/12340763622899712000",
"17": "642332179/18881368343036559360000",
"18": "692319119/15105094674429247488000",
"19": "8003636403977/77489135679822039613440000",
"20": "248112728523287/619913085438576316907520000",
"21": "593468652605200909/216969579903501710917632000000",
"22": "50904295073459007001/1507367607750643465322496000000",
"23": "1015740532498234470066371/1317439289174062388691861504000000",
"24": "701876707956280018815862361/21079028626784998219069784064000000",
"25": "84715059480304651623612272842147/30465396080006318014267329085440000000",
"26": "14616335635894388876188472684851927/31871491283698917307233513504768000000",
"27": "1894352751772146867430486995462923265007/12429881600642577749821070266859520000000",
"28": "10345060377427694043037889482223023950203227/99439052805140621998568562134876160000000",
"29": "4285009823959590682115628739356169586687220752159/28837325313490780379584883019114086400000000",
"30": "156429914319579070270102710292957201465725850451195039/346047903761889364555018596229369036800000000",
"31": "447543572700878404232772149927275573042725639059585587715489/150184790232659984216878070763546161971200000000",
"32": "416022631331982837344253774635747627157753429574979915187099394241/9611826574890238989880196528866954366156800000000"
},
"II": {
"0": "1",
"8": "1/696729600",
"16": "691/277667181515243520000",
"24": "1027637932586061520960267/129477933340026851560636148613120000000",
"32": "4890529010450384254108570593011950899382291953107314413193123/121325280941552041649762780685623131486814208000000000"
}
}