# A187764 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 11
4 45
5 198
6 919
7 4445
8 22215
9 114000
10 597790
11 3191070
12 17289023
13 94845796
14 525838005
15 2941748627
16 16585870501
17 94147448172
18 537592229784
19 3085816136840
20 17795391949590
21 103051160368120
22 598997937352830
23 3493575551891610
24 20438727738501275
25 119911429466179978