# A023046 (b-file synthesized from sequence entry)
0 133496
1 1468457
2 17487988
3 224406930
4 3089233056
5 45440868120
6 711607724640
7 11824686110160
8 207863095910400
9 3854801333416320
10 75225258805132800
11 1541182421573625600
12 33078535427763302400
13 742312125779672448000
14 17385470058151215820800
15 424244381692864981248000