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The sum of the series 2·20C0 + 5·^20C1 + 8·^20C2 + 11·^20C3 + …. + 62·^20C20 is equal to -

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The sum of the series 2·20C0 + 5·20C1 + 8·20C2 + 11·20C3 + …. + 62·20C20 is equal to - 

(1)  223

(2)  225

(3)  226

(4)  224

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Correct option (2) 225

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