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A277862 as a simple table

na(n)
11
21
32
46
518
673
7308
81484
97492
1040010
11220676
121253940
137282316
1443096792
15259019070
161577653196
179720170360
1860492629435
19379820431422
202403679290621
2115319255038074
2298255642978084
23633833391637128
244110221883283079
2526781322507739916
26175268504233782739

[1,1,2,6,18,73,308,1484,7492,40010,220676,1253940,
 7282316,43096792,259019070,1577653196,9720170360,
 60492629435,379820431422,2403679290621,
 15319255038074,98255642978084,633833391637128,
 4110221883283079,26781322507739916,
 175268504233782739]