# A103938 (b-file synthesized from sequence entry)
1 3
2 2
3 5
4 18
5 77
6 364
7 1836
8 9690
9 52877
10 296010
11 1690845
12 9817080
13 57769740
14 343806368
15 2065802056
16 12515350122
17 76367432013
18 468922828150
19 2895381678735
20 17966214519330
21 111977263221285
22 700704492237540
23 4400559613086000
24 27727270719559320
25 175230257041962252