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Maximal number of flips required to sort a stack of n unburnt pancakes using the big-3 flips.
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%I #8 Oct 07 2020 10:26:19

%S 0,1,3,4,8,12,15,21,27,35,42,50

%N Maximal number of flips required to sort a stack of n unburnt pancakes using the big-3 flips.

%H J. Sawada and A. Williams, <a href="http://www.cis.uoguelph.ca/~sawada/papers/pancake_successor.pdf">Successor rules for flipping pancakes and burnt pancakes</a>, Preprint 2015.

%Y Cf. A058986.

%K nonn,more

%O 1,3

%A _N. J. A. Sloane_, Apr 09 2016