# A006698 (b-file synthesized from sequence entry)
0 1
1 1
2 11
3 378
4 27213
5 3378680
6 645216039
7 175804806912
8 64820487788537
9 31093204323279744
10 18824085922156535715
11 14040767751007803601664
12 12652731866917353207799557
13 13553071929305974778937888768