I computed an answer for 38 with my modified version of hv's program, using logs. The result is: 
"sssssssssfsssssssssssfssssssfssssssfssssssfssssssssssfssssssssfssssss
+ssfssssssfssssssfssssfssssssssfsfssfssssssfsssssfssfsfssff"

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I confirmed this answer with Math::Pari, and it is correct. The highest factorial required is 1861.

In reply to Re^3: Challenge: Chasing Knuth's Conjecture by tall_man
in thread Challenge: Chasing Knuth's Conjecture by kvale

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