# A057829 (b-file synthesized from sequence entry) 1 1 2 3 3 9 4 27 5 51 6 81 7 243 8 279 9 729 10 2187 11 4131 12 4947 13 6561 14 19683 15 21213 16 22599 17 23571 18 48357 19 59049 20 104733 21 177147 22 184419 23 220887 24 334611 25 531441 26 640791 27 808461