Modular and distributive lattices, without vertical sums and 2-sums

The data contains exhaustive listings of nonisomorphic modular lattices (4-35 elements) and distributive lattices (4-60 elements), except for vertical sums and 2-sums. The lattices are stored in digraph6 format and compressed with xz. More details in file 00README.txt. The arXiv manuscript describes how the data were created. Program code is available at .

本数据包含非同构模格（nonisomorphic modular lattices，4-35个元素）和分配格（distributive lattices，4-60个元素）的详尽列表，但不包括垂直和（vertical sums）与2-和（2-sums）。这些格以digraph6格式存储，并使用xz压缩。更多细节见文件00README.txt。arXiv预印本手稿描述了数据的生成方式。程序代码可在获取。