# A372420 (b-file synthesized from sequence entry) 0 1 1 5 2 18 3 62 4 214 5 750 6 2676 7 9708 8 35718 9 132926 10 499228 11 1888644 12 7186876 13 27478508 14 105474216 15 406182552 16 1568563014 17 6071812638 18 23552366796 19 91525132692 20 356242058004 21 1388588519268 22 5419533876696 23 21176597444712 24 82834229300124 25 324326668721100