1,4,9,16,25,( ),( ),64,81

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1,4,9,16,25,(),(),64,811,4,9,16,25,(),(),64,811,4,9,16,25,(),(),64,811,4,9,16,25经观察,每项比前一项的差依次为,3,5,

1,4,9,16,25,( ),( ),64,81
1,4,9,16,25,( ),( ),64,81

1,4,9,16,25,( ),( ),64,81
1,4,9,16,25
经观察,每项比前一项的差依次为,3,5,7,9,
全是奇数 所以之后的差为11,13,
所以那两空为,36,49

36, 49

36 49