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A151523 as a simple table

na(n)
11
22
34
410
520
648
7106
8252
9578
101372
113208
127584
1317850
1442102
1599276
16233716
17550960
181295146
193050226
207161346
2116846668
2239511876
2392845830

[1,2,4,10,20,48,106,252,578,1372,3208,7584,17850,
 42102,99276,233716,550960,1295146,3050226,7161346,
 16846668,39511876,92845830]