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 2020-10-22, 14:48 #1069 sweety439   Nov 2016 22×691 Posts For the Sierpinski bases 2<=b<=128 and b = 256, 512, 1024: proven: 4, 5, 7, 8, 9, 11, 13, 14, 16, 17, 19, 20, 21, 23, 27, 29, 34, 35, 39, 41, 43, 44, 45, 47, 49, 51, 54, 56, 57, 59, 61, 64, 65, 69, 71, 73 (with PRP), 74, 75, 76, 79, 84, 85, 87, 88, 90, 94, 95, 100, 101, 105 (with PRP), 110, 111, 114, 116, 119, 121, 125, 256 (with PRP) weak proven (only GFN's or half GFN's remain): 12, 18, 32, 37, 38, 50, 55, 62, 72, 77, 89, 91, 92, 98, 99, 104, 107, 109 1k bases: 25, 53, 103, 113, 118 2k bases but become 1k bases if GFN's and half GFN's are excluded: 10, 36, 68, 83, 86, 117, 122, 128 4k bases but become 1k bases if GFN's and half GFN's are excluded: 512 2k bases: 26, 30, 33, 46, 115 3k bases but become 2k bases if GFN's and half GFN's are excluded: 67, 123 3k bases: 28, 102 4k bases but become 3k bases if GFN's and half GFN's are excluded: 93 5k bases but become 3k bases if GFN's and half GFN's are excluded: 1024