# A136793 (b-file synthesized from sequence entry)
1 4
2 16
3 104
4 752
5 5996
6 50512
7 444256
8 4027360
9 37383044
10 353486320
11 3393093696
12 32976302800
13 323839605124
14 3208549483216
15 32033691247528
16 321955764477936
17 3254812520854980
18 33075467402453872
19 337670437247448728
20 3461635652745799136
21 35620112071990294784