# A059368 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 3 4 20 5 30 6 15 7 161 8 525 9 525 10 105 11 1584 12 8232 13 17640 14 13230 15 945 16 18579 17 134970 18 457380 19 727650 20 436590