OFFSET
1,2
COMMENTS
Card #1 being at the top before the first shuffle is not counted. The card at the top is in A080346. Card 170 reaches the top for the 15th time after 5886828 shuffles and for the 16th time after 9140809 shuffles, so a(15) <= 5886828 and a(16) <= 9140809.
EXAMPLE
Card #14 is the first card to reach the top position 3 times after 41 shuffles and it is the first card to do so, so a(3)=41.
PROG
(Python) # See program in A080346
CROSSREFS
KEYWORD
hard,more,nonn
AUTHOR
Jud McCranie, Feb 16 2003, revised Mar 08 2003
EXTENSIONS
a(2) and a(9) corrected by Michael S. Branicky, Feb 01 2021
a(15)-a(16) from Frank A. Stevenson, Feb 04 2024
a(17)-a(19) from Frank A. Stevenson, Feb 09 2024
STATUS
approved