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A047968 as a simple table

na(n)
11
23
34
48
58
617
716
830
934
1052
1157
1299
13102
14153
15187
16261
17298
18432
19491
20684
21811
221061
231256
241696
251966
262540
273044
283876
294566
305846
316843
328610
3310203
3412610
3514906
3618491
3721638
3826508
3931290
4038044
4144584
4254133
4363262
4476241

[1,3,4,8,8,17,16,30,34,52,57,99,102,153,187,261,
 298,432,491,684,811,1061,1256,1696,1966,2540,3044,
 3876,4566,5846,6843,8610,10203,12610,14906,18491,
 21638,26508,31290,38044,44584,54133,63262,76241]