# A072790 (b-file synthesized from sequence entry)
0 0
1 1
2 3
3 13
4 38
5 230
6 6902
7 5963330
8 4445170540277
9 2469942641522759680444872
10 762577081551553466590743598512392989564579443140
11 72690475663460578305076472056787461439583062421562715705151023011944336192599271053989785936377