1 2
2 17
3 254561089305599
4 8483004771271882804592639999
5 706526001186582385898210420541078864497278132689882316799999999
6 353401447088718405944982176443380974931403135679741865504466985287679999999999
7 48769399698243140020407540349186574540533632723804377439616443969699839999999999