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A055395 as a simple table

na(n)
11
20
30
41
54
612
736
8116
9392
101350
114696
1216500
1358572
14209824
15757440
162752185
1710057636
1836943044
19136319052
20505086728
211878395920
227009239644
2326235435248
2498475145476
25370584275964
261397918543552
275284861554816

[1,0,0,1,4,12,36,116,392,1350,4696,16500,58572,
 209824,757440,2752185,10057636,36943044,136319052,
 505086728,1878395920,7009239644,26235435248,
 98475145476,370584275964,1397918543552,
 5284861554816]