Kolejne liczby nieparzyste roznia sie o 2
2n-1, 2n+1, 2n+3
2n+1 = (2n-1 + 2n+3)/2 = (4n+2)/2 = 2(2n+1)/2
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Kolejne liczby nieparzyste roznia sie o 2
2n-1, 2n+1, 2n+3
2n-1, 2n+1, 2n+3
2n+1 = (2n-1 + 2n+3)/2 = (4n+2)/2 = 2(2n+1)/2