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A007448 Knuth's sequence (or Knuth numbers): a(n+1) = 1 + min ( 2 a[ n/2 ], 3 a[ n/3 ] ).
(Formerly M2276)
+0
5
1, 3, 3, 4, 7, 7, 7, 9, 9, 10, 13, 13, 13, 15, 15, 19, 19, 19, 19, 21, 21, 22, 27, 27, 27, 27, 27, 28, 31, 31, 31, 39, 39, 39, 39, 39, 39, 39, 39, 40, 43, 43, 43, 45, 45, 46, 55, 55, 55, 55, 55, 55, 55, 55, 55, 57, 57, 58, 63, 63, 63, 63, 63, 64, 67, 67, 67, 79, 79, 79, 79 (list; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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