OFFSET
1,1
COMMENTS
Numbers beginning with a nine are most likely to have this property, and numbers beginning with a one are least likely. No squares have it.
LINKS
Andreas Boe, Table of n, a(n) for n = 1..551
EXAMPLE
sqrt(17) = 4.12310562561766054... The first 17 digits after the decimal point contain "17".
MATHEMATICA
Select[Range@ 301, ! StringFreeQ[ToString@ FromDigits@ First@ RealDigits@ N[Sqrt@ #, #], ToString@ #] &] // Rest (* Michael De Vlieger, Jul 02 2015 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Andreas Boe, Jun 30 2015
STATUS
approved