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A190502 as a simple table

na(n)
00
11
21
31
42
54
67
713
823
942
1075
11137
12255
13463
14872
151612
163030
175706
1810749
1920387
2038635
2173584
22140336
23268216
24513705
25985818
261894120
273645744
287027290
2913561906
3026207278
3150697533
3298182656
33190335585
34369323301
35717267167
361394192236
372712103833

[0,1,1,1,2,4,7,13,23,42,75,137,255,463,872,1612,
 3030,5706,10749,20387,38635,73584,140336,268216,
 513705,985818,1894120,3645744,7027290,13561906,
 26207278,50697533,98182656,190335585,369323301,
 717267167,1394192236,2712103833]