# A058830 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 0 6 90 7 3150 8 131040 9 6667920 10 416593800 11 31506454980 12 2841125225400 13 301392906637680 14 37173926260360890 15 5276692469017119150 16 854273993613848327520 17 156491796247034356836000