# A177640 (b-file synthesized from sequence entry)
0 1
1 1
2 70
3 34650
4 58370761
5 254257625001
6 2393820329913000
7 43063879074705797700
8 1353425989195928500100361
9 69430476979743039562119157801
10 5512282735792717664890405885818130
11 648886597453482823172404492855676280150
12 109337364789335440628249746207373482901394961