# A057258 (b-file synthesized from sequence entry) 1 1 2 3 3 9 4 17 5 27 6 51 7 81 8 153 9 243 10 289 11 459 12 729 13 867 14 1003 15 1377 16 1853 17 2187 18 2601 19 4131 20 4913 21 5253 22 6561 23 7803 24 12393 25 13203 26 14739 27 15759 28 19683 29 23409 30 34263 31 37179 32 39609 33 40749 34 44217 35 46089 36 47277 37 51273 38 59049 39 61863 40 70227 41 83521