References to A037276

Start with 1; for n>1, replace n by the concatenation of its prime factors in increasing order.
1, 2, 3, 22, 5, 23, 7, 222, 33, 25, 11, 223, 13, 27, 35, 2222, 17, 233, 19, 225, 37, 211


2 seqfan posts

Thu Apr 29 08:40:38 CEST 2010    [seqfan] Re: Concatenate prime factors of n
Thu Apr 29 06:05:37 CEST 2010    [seqfan] Concatenate prime factors of n

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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