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  1. #include <stdio.h>
  2.  
  3. int b(int n){
  4. 	if(n==1)
  5. 	return 5;
  6. 	return b(n-1)+6;
  7. }
  8. int a(int n){
  9. 	if(n==1)
  10. 	return 2;
  11. 	return a(n-1)+b(n-1);
  12. }
  13.  
  14.  
  15. int main(void) {
  16. int n;
  17. scanf("%d", &n);
  18. printf("an= %d", a(n));
  19. 	return 0;
  20. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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stdout
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an= 18
https://ideone.com/jj82G7
language:
C (gcc 8.3)
created:
16 days ago
visibility:
public

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