Answer: 8 Reason: 77(7x7)=49, 49(4x9)=36, 36(3x6)=18, 18(1x8)=8.
The next number is 0
49
The next number is 49+8 = 57
49 (6 x 6 = 36 ... 7 x 7 = 49)
81
It appears as if you are multiplying the digits together to create the next number. If that's true, the fifth number would be 8 and the sixth digit and any after that would be zero.
The next two square numbers after 30 are 36 and 49
25, 36, 49 . . . these are the squared numbers
yes. 62 = 36 and 72 = 49
36 and 49
16 is the next number. All you do is sequentially add the next odd number. Therfore after 16 the next number would be 25... the next 36... the next 49... the next 54...