Online Permutation/Bijection Calculator

474 Views Asked by At

Does anyone know of an online permutation calculator (permutation in the sense of $S_n$)? I found one a while ago (I am pretty certain the website had the word "banana" in the title), but I can no longer find it. I just need to do things such as verifying that I properly calculated, e.g., $(12)(23)(12)(23)$, etc.