Below are the descriptions/formulae of the sequences you'll need to use for this challenge: Recamán's sequence: a0 = 0; for n > 0, an = an-1 - n if positive and not already in the sequence, otherwise an = an-1 + n Fibonacci sequence: an = (Φn – (–Φ)–n...

This is my first puzzle, so I'm trying to be as specific as possible and am happy to get poked to any loopholes it might have. You are given a mxn matrix of numbers, that have two possible integer entries a and b. A sliding window of size c is moving over the array and the following rules applie...

Today, November 11th, is known as Remembrance Day, Armistice Day, or Veterans Day (depending upon the country), and is a day of reflection and gratitude for members of the military and their service, specifically started to reflect the end of European hostilities in the first World War. Let us re...

In other words, the answerer must provide or explain some way or form to run their answer on a computer. This would apply to new answers only, assuming the required consensus is reached. If the answer cannot be run on a computer at all, it is not allowed. What do you think about this?

This is the cops' thread. For the robbers' thread, click here. Cops' Task First, write a quine in a language of your choosing. Next, scramble the quine. Make sure to do this well as the robbers will be trying to unscramble it and find the original source code! Post an answer on this thread. In...

This is the robbers' thread. For the cops' thread, click here. Cops' Task For the cops' thread, click here. Robbers' Task Find an uncracked submission on the cops' thread. (A submission may only be cracked once.) Unscramble the code to find a working quine. Post an answer on the robbers' thr...