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17 lines
369 B
C++
17 lines
369 B
C++
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#include<iostream>
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#include<cmath>
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using namespace std;
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int main(){
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int i;
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long long a[32] = { 0, 0, 0 }, c = 0, b = 2,t;
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for (i = 3; i < 32; ++i)
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{
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a[i] = a[i - 1] * 4 + (long long)(pow(2, i - 1) - 2) * 2 + (c + b) * 2;
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t = c + b*2;
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b = (c + b)*2 + 2;
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c = t;
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}
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for (i = 2; i < 32; ++i)
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cout << "N=" << i <<": " << a[i] << endl;
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}
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