# A123996 (b-file synthesized from sequence entry)
1 3
2 11
3 97
4 1847
5 5623
6 9587
7 89753
8 396833
9 3851587
10 11981587
11 70396589
12 202551883
13 1872852203
14 10958688203
15 47203303559
16 767644375301
17 8817792099037
18 78610833115937
19 497687231721941
20 2069461000670881