# A075539 (b-file synthesized from sequence entry) 1 9 2 27 3 2187 4 19683 5 300763 6 1092727 7 2048383 8 6128487 9 15069223 10 21717639 11 24642171 12 27818127 13 36264691 14 38958219 15 54439939 16 65450827 17 84604519 18 90224199 19 112678587 20 133432831 21 139798359 22 143055667 23 163667323 24 246491883 25 313046839 26 341532099 27 347428927