# A117580 (b-file synthesized from sequence entry) 0 1 1 9 2 25 3 27 4 49 5 81 6 125 7 169 8 225 9 343 10 361 11 441 12 729 13 729 14 841 15 1331 16 1369 17 1521 18 2197 19 2025