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A161787 as a simple table

na(n)
10
20
30
41
51
66
76
818
925
1042
1142
12241
13241
14324
15667
161602
171602
185511
195511
2021596
2132549
2235434
2335434
24237727
25270992
26292057
27421656
281140425
291140425
307609789
317609789
3219163336
3322436043
3423293234
3546391754
36313698907
37313698907
38324745136
39370720970
402113744875

[0,0,0,1,1,6,6,18,25,42,42,241,241,324,667,1602,
 1602,5511,5511,21596,32549,35434,35434,237727,
 270992,292057,421656,1140425,1140425,7609789,
 7609789,19163336,22436043,23293234,46391754,
 313698907,313698907,324745136,370720970,
 2113744875]