See BP1032 for left infinite vs. left finite. That is this Problem with with sides flipped and sides of mini-Problems flipped.
See BP516 (right-finite) for a version that sorts links to Bongard Problems and not just about numbers, instead of images of Bongard Problems (miniproblems) about numbers.
Adjacent-numbered pages:
BP1036 BP1037 BP1038 BP1039 BP1040  *  BP1042 BP1043 BP1044 BP1045 BP1046
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