Mine

#include <stdio.h>

int main (void) {

int i,x,y,sum,N;
sum=0;
N=5;
printf("1");
å
for ( i=0; i <= N; i++) {

y=i+1;
 
 for ( x=1; x <= i-1 ; x++ ) {
   printf("*%d",i);
   y=y*(i+1);
 }

sum = sum + y;
}

printf("=%d",sum);
printf("\n");
return 0;
}