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A262166 as a simple table

na(n)
01
11
22
35
420
586
6516
73135
825080
9196468
101964680
1118827225
12225926700
132559350288
1435830904032
15468385940355
167494175045680
17111029569712844
181998532254831192
1933092842524631733
20661856850492634660
2112113055891685809704
22266487229617087813488

[1,1,2,5,20,86,516,3135,25080,196468,1964680,
 18827225,225926700,2559350288,35830904032,
 468385940355,7494175045680,111029569712844,
 1998532254831192,33092842524631733,
 661856850492634660,12113055891685809704,
 266487229617087813488]