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 A386936 #26 Sep 01 2025 01:44:37 %S A386936 1,2,3,4,5,6,7,8,9,343,736,1285,2187,2592,2737,3125,3685,3972,4096, %T A386936 6455,11664,14641,15552,15585,15617,15618,15622,15624,15626,15632, %U A386936 15645,15655,15656,15662,15667,15698,16377,16384,17536,19683,23328,24576,27639 %N A386936 Numbers that can be represented using their digits in the order of appearance, the operations +, -, *, /, ^, and any parentheses. %C A386936 Each digit is its own operand (no concatenation of digits). %C A386936 Real and imaginary intermediate values are allowed as long as the final value of the expression is an integer. %C A386936 Unary minus is not allowed, otherwise we would have 127 = -1 + 2^7. - _Sean A. Irvine_, Aug 31 2025 %H A386936 Walter Robinson, <a href="/A386936/a386936.txt">Expressions for Values up to 50000</a> %e A386936 343 = (3+4)^3. %e A386936 2737 = (2*7)^3-7. %e A386936 46688 = (4 + 6^6/8)*8. %Y A386936 Cf. A036057, A046469, A080035, A156954, A362769. %K A386936 base,nonn,changed %O A386936 1,2 %A A386936 Anuraag Pasula and _Walter Robinson_, Aug 09 2025