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A048139 as a simple table

na(n)
11
21
32
45
58
616
730
854
994
10168
11287
12493
13831
141391
152293
163769
176114
189867
1915782
2025098
2139598
2262165
2396935
24150398
25232021
26356261
27544220
28827758
291253222
301889655
312837455
324244505
336324993
349392009
3513897056
3620494991
3730126628

[1,1,2,5,8,16,30,54,94,168,287,493,831,1391,2293,
 3769,6114,9867,15782,25098,39598,62165,96935,
 150398,232021,356261,544220,827758,1253222,
 1889655,2837455,4244505,6324993,9392009,13897056,
 20494991,30126628]