Judging from the forums, the most common features people look at in draw game results are even/odd, high/low, high/medium/low, sums, repeating numbers, and consecutive numbers. More exotic and uncommon things you could filter by are
- sums taken modulo K, for some positive integer K
- differences between the highest and lowest numbers
- products
- prime numbers
- square numbers
- triangular numbers
- numbers forming a linear sequence
- numbers that spell out words using 0=O, 1=I, 2=Z, 3=E, 4=A, 5=S, 6=G or b, 7=T, 8=B, 9=P or q
For lotteries that draw with actual balls in a tumbler, these things are completely arbitrary. The balls don't know what numbers are printed on them and lack the sentience to arrange themselves into patterns. But for lotteries that draw numbers with PRNG formulas which are not truly random, maybe possibly there could be some merit to mathematical filters. You would need more information about the PRNG algorithm and how it is seeded to make any headway.
But dr san, you refuse to learn how to program or use spreadsheet programs, so any of this kind of filtering would be an arduous task you'd have to do by hand, with very little chance of a payoff, and offering little or no improvement over quick picks. Why not conserve your brain energy for something more useful, such as improving your English, or -- gasp! -- learning to program?
