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A061883 as a simple table

na(n)
01
11
21
33
46
510
621
736
878
9153
10300
11595
121176
132346
144656
159316
1618528
1737128
1874305
19148240
20296835
21593505
221186570
232372931
244744740
259489546
2618975880
2737953828
2875909681
29151806600
30303626403
31607243825
321214480970
332428940451

[1,1,1,3,6,10,21,36,78,153,300,595,1176,2346,4656,
 9316,18528,37128,74305,148240,296835,593505,
 1186570,2372931,4744740,9489546,18975880,37953828,
 75909681,151806600,303626403,607243825,1214480970,
 2428940451]