OFFSET
1,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..10000
EXAMPLE
The first substring of Pi containing all 10 digits is 3.14159265358979323846264338327950, so a(1) = 0.
The next substring of Pi is 288419716939937510, so a(2) = 0.
The next substring of Pi is 5820974944592307816, so a(3) = 6.
The next substring of Pi is 406286208998628034825342117, so a(4) = 7.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Bobby Jacobs, Oct 01 2016
STATUS
approved