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A293749 as a simple table

na(n)
01
11
22
36
415
545
6136
7430
81415
94845
1017235
1163508
12242841
13959746
143924747
1516551199
1671994097
17322098625
181481655067
196990945197
2033812067833
21167294687170
22846131720816
234367249636291
2422985935628080
25123193976095986
26671862417595209
273724122166971836

[1,1,2,6,15,45,136,430,1415,4845,17235,63508,
 242841,959746,3924747,16551199,71994097,322098625,
 1481655067,6990945197,33812067833,167294687170,
 846131720816,4367249636291,22985935628080,
 123193976095986,671862417595209,3724122166971836]