# A057296 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 9 5 27 6 69 7 81 8 146 9 243 10 729 11 2187 12 3358 13 3753 14 6561 15 9153 16 10658 17 14337 18 16767 19 19683 20 21627 21 59049 22 177147 23 193671 24 531441 25 778034 26 845883