OFFSET
1,2
LINKS
Gheorghe Coserea, Table of n, a(n) for n = 1..128
J. Sawada, A. Williams, Successor rules for flipping pancakes and burnt pancakes, Preprint, Theoretical Computer Science, Volume 609, Part 1, 4 January 2016, Pages 60-75.
PROG
(PARI)
a(n) = n * 2^n * n!/2 + sum(k=1, n-1, (2*k+1) * k * 2^k * k!/2);
vector(20, k, a(k)) \\ Gheorghe Coserea, Apr 25 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 09 2016
EXTENSIONS
More terms from Gheorghe Coserea, Apr 25 2016
STATUS
approved