This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A030706 #19 Feb 16 2025 08:32:35 %S A030706 0,1,2,3,4,6,7,8,9,12,13,14,15,16,18,41 %N A030706 Decimal expansion of 11^n contains no zeros (probably finite). %C A030706 See A195946 for the actual powers 11^n. - _M. F. Hasler_, Dec 17 2014 %C A030706 It appears that 41 is also the largest integer n such that 11^n is not pandigital, cf. A272269. - _M. F. Hasler_, May 18 2017 %H A030706 M. F. Hasler, <a href="https://oeis.org/wiki/Zeroless_powers">Zeroless powers</a>, OEIS Wiki, Mar 07 2014 %H A030706 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Zero.html">Zero</a> %t A030706 Select[Range[0,41],DigitCount[11^#,10,0]==0&] (* _Harvey P. Dale_, Dec 31 2020 *) %o A030706 (PARI) for(n=0,99,vecmin(digits(11^n))&&print1(n",")) \\ _M. F. Hasler_, Mar 08 2014 %Y A030706 For other zeroless powers x^n, see A238938, A238939, A238940, A195948, A238936, A195908 (x=7), A245852, A240945 (k=9), A195946 (x=11), A245853 (x=12), A195945 (x=13); A195942, A195943, A103662. %Y A030706 For the corresponding exponents, see A007377, A030700, A030701, A008839, A030702, A030703, A030704, A030705, A030706 (this), A195944. %Y A030706 For other related sequences, see A052382, A027870, A102483, A103663. %K A030706 nonn,base %O A030706 1,3 %A A030706 _Eric W. Weisstein_ %E A030706 Offset corrected and initial term 0 added by _M. F. Hasler_, Sep 25 2011 %E A030706 Further edits by _M. F. Hasler_, Dec 17 2014