来自在线整数百科全书的问候语!http://oeis.org/ Search: id:a238939 Showing 1-1 of 1 %I A238939 %S A238939 1,3,9,27,81,243,729,2187,6561,19683,177147,531441,1594323,4782969, %T A238939 1162261467,94143178827,282429536481,2541865828329,7625597484987, %U A238939 22876792454961,617673396283947,16677181699666569,278128389443693511257285776231761 %N A238939 Powers of 3 without the digit '0' in their decimal expansion. %C A238939 Conjectured to be finite and complete. 请参阅OEIS Wiki页面以获取更多信息、参考和链接。零幂, OEIS wiki, Mar 07 2014 %F A238939 a(n)=3^A030700(n). %o A238939 (PARI) for(n=0,99,vecmin(digits(3^n))&& print1(3^n",")) %Y A238939 For the zeroless numbers (powers x^n), see A238938, A238939, A238940, A195948, A238936, A195908, A195946, A195945, A195942, A195943, A103662. %Y A238939 For the corresponding exponents, see A007377, A008839, A030700, A030701, A008839, A030702, A030703, A030704, A030705, A030706, A195944. %Y A238939 For other related sequences, see A052382, A027870, A102483, A103663. %K A238939 nonn,fini,base %O A238939 1,2 %A A238939 _M. F. Hasler_, Mar 07 2014 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE