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【单选题】

数列-13×5,25×7,-37×9,49×11,…的通项为(  )

A.
(-1)n+11(2n+1)(2n+3)
B.
(-1)n+1n(2n+1)(2n+3)
C.
(-1)n1(2n+1)(2n+3)
D.
(-1)nn(2n+1)(2n+3)
题目标签:数列通项
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参考答案:
参考解析:
.
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