# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a060283 Showing 1-1 of 1 %I A060283 #32 Jul 10 2021 19:25:46 %S A060283 0,3,0,142857,90,769230,5882352941176470,526315789473684210, %T A060283 4347826086956521739130,3448275862068965517241379310,322580645161290, %U A060283 270,24390,232558139534883720930,2127659574468085106382978723404255319148936170 %N A060283 Periodic part of decimal expansion of reciprocal of n-th prime (leading 0's moved to end). %H A060283 T. D. Noe, Table of n, a(n) for n=1..100 %F A060283 A060283 = A036275 o A000040, i.e., a(n) = A036275(A000040(n)). - _M. F. Hasler_, Dec 28 2015 %e A060283 1/11 = .09090909..., so a(5) = 90. %t A060283 Table[FromDigits[FindTransientRepeat[RealDigits[1/p,10,100][[1]],2][[2]]],{p,Prime[Range[20]]}] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Jul 10 2021 *) %o A060283 (PARI) a(n)=t=iferr(znorder(Mod(10,n)),E,0);d=(10^t-1)/n;s=t-#Str(d);if(s,d*10^s,d) %o A060283 forprime(i=1,1e2,print1(a(i)", ")) \\ _Lear Young_, Mar 01 2014 %Y A060283 Cf. A036275, A060251. %K A060283 nonn,easy,base %O A060283 1,2 %A A060283 _N. J. A. Sloane_, Mar 30 2001 %E A060283 More terms from _Klaus Brockhaus_, Mar 30 2001 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE