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A129751 The natural numbers represented by their set theoretic Von Neumann construction, where the empty set is replaced by '0', the left set bracket '{' is replaced by 1, the right bracket '}' is replaced by 2 and the set construct contents are ordered by increasing cardinality. +0
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0, 102, 101022, 101021010222, 101021010221010210102222, 101021010221010210102221010210102210102101022222, 10102101022101021010222101021010221010210102222101021010221010210102221010210102\ 2101021010222222 (list; graph; listen)
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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