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A131355 as a simple table

na(n)
01
11
21
33
44
58
610
716
819
927
1031
1141
1246
1358
1464
1578
1685
17101
18109
19127
20136
21156
22166
23188
24199
25223
26235
27261
28274
29302
30316
31346
32361
33393
34409
35443
36460
37496
38514
39552
40571
41611
42631
43673
44694
45738
46760
47806
48829
49877
50901
51951
52976
531028
541054
551108

[1,1,1,3,4,8,10,16,19,27,31,41,46,58,64,78,85,101,
 109,127,136,156,166,188,199,223,235,261,274,302,
 316,346,361,393,409,443,460,496,514,552,571,611,
 631,673,694,738,760,806,829,877,901,951,976,1028,
 1054,1108]