找规律,超难!61,52,63,94,( ),18

问题描述:

找规律,超难!61,52,63,94,( ),18

61,52,63,94,(46 ),18
4*4=16 (61)
5*5=25 (52)
6*6=36 (63)
7*7=49 (94)
8*8=64 (46)
9*9=81 (18)