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Times@@Range[#1##&@@Range[#,1,-#2]& -1 thanks to attinat: Times --> 1##&
Explanation: use Range to make a list of the values {n, n-k, n-2k, n-3k, ...}, stopping before going below 1 (i.e., stopping just right). Then multiply all numbers in this list with Times (or 1##&).
Times@@Range[#,1,-#2]& Explanation: use Range to make a list of the values {n, n-k, n-2k, n-3k, ...}, stopping before going below 1 (i.e., stopping just right). Then multiply all numbers in this list with Times.
1##&@@Range[#,1,-#2]& -1 thanks to attinat: Times --> 1##&
Explanation: use Range to make a list of the values {n, n-k, n-2k, n-3k, ...}, stopping before going below 1 (i.e., stopping just right). Then multiply all numbers in this list with Times (or 1##&).
Times@@Range[#,1,-#2]& Explanation: use Range to make a list of the values {n, n-k, n-2k, n-3k, ...}, stopping before going below 1 (i.e., stopping just right). Then multiply all numbers in this list with Times.