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  1. #include <stdio.h>
  2.  
  3. int rec(int n) {
  4.     if (n == 0) return 3;
  5.     else if (n == 1) return 0;
  6.     else if (n == 2) return 2;
  7.     return rec(n - 2) + rec(n - 3);
  8. }
  9.  
  10. int main(void) {
  11.     int n = 50; 
  12.     for (int i = 1; i <= n; i++) {
  13.         int a = rec(i);  
  14. 	if (a % i== 0) {  
  15.             printf("%d ",i);
  16.         }
  17.     }
  18.  
  19.     return 0;
  20. }
  21.  
Success #stdin #stdout 0.02s 5312KB
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stdin 
Standard input is empty
stdout 
1 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47
https://ideone.com/j87eye
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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