OFFSET
1,2
COMMENTS
In the joint ranking, duplicates are removed.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..999
EXAMPLE
The joint ranking is (1,2,4,6,8,16,24,32,64,120,128,...), in which the positions of n! are 1,2,4,7,...
MATHEMATICA
t = Join[{1}, -1 + Table[n + Floor[Log[2, n!]], {n, 2, 150}]]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Aug 31 2016
STATUS
approved