A331208 The minimum perimeter for exactly n matchstick squares of size >= 1.
0, 4, 6, 8, 10, 8, 10, 12, 10, 12, 14, 12, 14, 16, 12, 14, 16, 14, 16, 18, 14, 16, 18, 16, 18, 20, 16, 18, 18, 18, 16, 18, 20
Offset: 0
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