1)- 120,123,126,129
2)-411,441,471
3)-510,504,513,516,519,525,528,537,540,543,546,549,552,555,558,561,564,567,570,573,576,579,582,585,588,591,594,597
4)1002,1005,1008,1011,1014,1017,1020... aduna cu trei
5)102,105,108,111,114,117,120,123,126,129,132 tot aduna cu trei punctul 5 si punct 4 se aseamana
6)12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99.
