# A318843 (b-file synthesized from sequence entry) 1 1 2 3 3 9 4 21 5 81 6 147 7 729 8 903 9 3025 10 6875 11 59049 12 29095 13 531441 14 171875 15 366025 16 643885 17 43046721 18 3511475