# [Recursiva], <s>20</s> 18 bytes smBa++'%'Va'a:0!a' [Try it online!][TIO-j7lnauxl] [Recursiva]: https://github.com/officialaimm/recursiva [TIO-j7lnauxl]: https://tio.run/##K0pNLi0qzixL/P@/ONcpUVtbXVU9LFE90cpAMVH9/38jAwA "Recursiva – Try It Online" # Explanation: smBa++'%'Va'a:0!a' - Input to a; 20 s - sum up; 42 m - map with; [1, 0, 3, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15] Ba - Range; [1,2..20] ++'%'Va'a:0!a' - function, evaluates to 0 if param cannot divide a i.e. 20