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A129831 as a simple table

na(n)
11
21
32
46
59
639
766
8318
9627
103213
117182
1238898
1396237
14548883
151478142
168843778
1725615647
18160178913
19494550162
203221341038
2110527969537
2271221636863
23245012506362
241716978047238
256188875533387
2644822878860213
27168635167816662
281259693955204138

[1,1,2,6,9,39,66,318,627,3213,7182,38898,96237,
 548883,1478142,8843778,25615647,160178913,
 494550162,3221341038,10527969537,71221636863,
 245012506362,1716978047238,6188875533387,
 44822878860213,168635167816662,1259693955204138]