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A027906 as a simple table

na(n)
01
14
214
348
4141
5396
61058
72696
86646
915884
1036956
1183976
12186849
13407864
14875030
151847824
163845520
177895872
1816010610
1932088120
2063611656
21124817444
22242560418
23467095640
24891754784
251688619460

[1,4,14,48,141,396,1058,2696,6646,15884,36956,
 83976,186849,407864,875030,1847824,3845520,
 7895872,16010610,32088120,63611656,124817444,
 242560418,467095640,891754784,1688619460]