24
could be 72
24
24
291
24
24
25-1=24 24-2=22 22-3=19 19-4=15 15-5=10 The next number in the series is 10.
24
61
The sequence is formed from two interwoven series. 440, 216, 104, 48 ........Halve the number and subtract 4. 260, 128, 62, 29...........Halve the number and subtract 2. The next number would be generated by the first series 48/2 = 24 24 - 4 = 20..........which is the next number.
The next number is 49+8 = 57