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A038087 as a simple table

na(n)
11
21
31
42
53
66
712
825
952
10112
11238
12503
131053
142194
154547
169406
1719401
1839965
1982189
20168837
21346380
22709917
231453380
242972636
256074138
2612400794
2725295272
2851556337
29104998985
30213681811
31434548933
32883104930
331793484049
343640032699
357383188993

[1,1,1,2,3,6,12,25,52,112,238,503,1053,2194,4547,
 9406,19401,39965,82189,168837,346380,709917,
 1453380,2972636,6074138,12400794,25295272,
 51556337,104998985,213681811,434548933,883104930,
 1793484049,3640032699,7383188993]