# A072343 (b-file synthesized from sequence entry)
1 3
2 28
3 320
4 4272
5 65632
6 1149312
7 22712832
8 501216000
9 12225264128
10 326574262272
11 9478749110272
12 296914161754112
13 9979741990993920
14 358151267772203008
15 13664955628675399680
16 552220995731872481280