# A050894 (b-file synthesized from sequence entry)
1 1
2 7
3 21
4 55
5 175
6 235
7 2289
8 12419
9 19917
10 19971
11 21979
12 54007
13 66241
14 68757
15 98595
16 241211
17 274509
18 322971
19 342349
20 470529