תשובה אחת
static void printseries(int n)
{
int d = 3;
int a1 = 1;
for (int i = 0; i < n -1 ; i++)
{
console.write(a1 + ", ");
a1 += d;
d += 4;
}
a1 += d;
console.write(a1 + "\n");
}
static void main(string[] args)
{
printseries(10);
}