# A260854 (b-file synthesized from sequence entry)
0 0
1 1
2 25
3 441
4 27961
5 7148857
6 1830131001
7 468514084153
8 119939614479673
9 30704541449950521
10 7860362613477971257
11 2012252829087011018041
12 515136724246861226808633
13 131875001407205856562222393
14 33760000360244849399916500281
15 8642560092222683848298425324857