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A149113 as a simple table

na(n)
01
11
24
39
430
590
6308
7963
83438
911234
1039658
11135300
12485182
131661050
146059294
1521080183
1676433836
17270898590
18989797908
193508506050
2012938529420
2146251009992
22169911558432
23613777776976
242265122877620
258178540706698
2630359539614762
27110190927578014
28407970567068040
291490764659238644

[1,1,4,9,30,90,308,963,3438,11234,39658,135300,
 485182,1661050,6059294,21080183,76433836,
 270898590,989797908,3508506050,12938529420,
 46251009992,169911558432,613777776976,
 2265122877620,8178540706698,30359539614762,
 110190927578014,407970567068040,1490764659238644]