# A345077 (b-file synthesized from sequence entry)
0 1
1 6
2 48
3 414
4 3876
5 38946
6 416808
7 4722774
8 56379756
9 706236426
10 9250945008
11 126342991614
12 1794459834036
13 26445918969906
14 403610795535288
15 6367606516836774
16 103683034842399996
17 1739933892930544986
18 30052751213767045248
19 533635421576480845134
20 9730601644306627161156