# A137801 (b-file synthesized from sequence entry) 1 0 2 6 3 900 4 748440 5 1559930400 6 6928346502000 7 58160619655538400 8 845986566719614320000 9 19957466912796971445888000 10 724891264860942581350908960000 11 38873628093261330554954970801600000