1X2X3X4+1=25=5²;2x3x4x5x6+1=121=11²;3x4x5x6x7+1=361=19²;.则(n+1)(n+2)(n+3)(n+4)+1=()
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1X2X3X4+1=25=5²;2x3x4x5x6+1=121=11²;3x4x5x6x7+1=361=19²;.则(n+1)(n+2)(n+3)(n+4)+1=()
1X2X3X4+1=25=5²;2x3x4x5x6+1=121=11²;3x4x5x6x7+1=361=19²;.
则(n+1)(n+2)(n+3)(n+4)+1=()
1X2X3X4+1=25=5²;2x3x4x5x6+1=121=11²;3x4x5x6x7+1=361=19²;.则(n+1)(n+2)(n+3)(n+4)+1=()
(n²+5n+5)²