# A256001 (b-file synthesized from sequence entry) 0 0 1 3 2 6 3 11 4 15 5 23 6 27 7 45 8 81 9 105 10 195 11 329 12 597 13 885 14 1425 15 2793 16 4725 17 8025 18 14265 19 23205 20 41685