Here's the one you were thinking of. This was the one "further optimized", not the first one posted: https://web.archive.org/web/20090723015302/http://crazybob

Here's the one you were thinking of. This was the one "further optimized", not the first one posted: https://web.archive.org/web/20090723015302/http://crazybob.org/FastBeustSequence.java.html https://web.archive.org/web/20090723015302/http://crazybob.o...