5, 10, 3, 8, 1...
add 5 subract 7
{ (5) +5 (10) -7 (3) +5 (8) -7 (1) +5 (6) }... and so forth.
5
27.
The pattern in the sequence 1000, 100, 10, 1 is that each number is divided by 10. Following this pattern, the next number would be 0.1.
5
10
5
10
456789
After a quatillion, which is (10^{24}), the next term is a quintillion, representing (10^{30}). Following a quintillion is a sextillion, which equals (10^{36}). Each term in this sequence increases by a factor of (10^6).
The sequence appears to be increasing in a non-linear fashion. The differences between the terms are 3 (6-3), 4 (10-6), 10 (20-10), and 4 (24-20). Following this pattern, the next difference could be 10 again, leading to the next term being 34 (24 + 10). Thus, the next number in the sequence is 34.
26 As far as I can tell the sequence is +10,-5,+10,-5.
5