References to A054261

Smallest number that contains the first n primes as substrings.
2, 23, 235, 2357, 112357, 113257, 1131725, 113171925, 1131719235

1 seqfan posts

Tue May 25 01:32:46 CEST 2010    [seqfan] Smallest number that contains the first n semiprimes as substrings
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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