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A149087 as a simple table

na(n)
01
11
24
37
430
575
6293
7897
83296
911493
1041905
11153503
12570138
132136265
148128562
1530938365
16119262756
17461558439
181797401295
197047184967
2027701702878
21109512364145
22434806576518
231730879700961
246923437993554
2527750890786575
26111617155390501
27450364141890515
281820424319409176

[1,1,4,7,30,75,293,897,3296,11493,41905,153503,
 570138,2136265,8128562,30938365,119262756,
 461558439,1797401295,7047184967,27701702878,
 109512364145,434806576518,1730879700961,
 6923437993554,27750890786575,111617155390501,
 450364141890515,1820424319409176]