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A243760 as a simple table

na(n)
00
11
21
34
411
540
6138
7512
81903
97256
1027910
11108704
12426702
131688080
146719252
1526895360
16108171319
17436935544
181771673454
197208637920
2029422782282
21120436341360
22494277785356
232033457590656
248384379887334
2534642507651952
26143413034719036
27594776592764224

[0,1,1,4,11,40,138,512,1903,7256,27910,108704,
 426702,1688080,6719252,26895360,108171319,
 436935544,1771673454,7208637920,29422782282,
 120436341360,494277785356,2033457590656,
 8384379887334,34642507651952,143413034719036,
 594776592764224]