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A056377 as a simple table

na(n)
10
20
33
421
539
6288
7309
81659
93102
1014148
1117157
12136227
13130995
14790128
151791489
165427597
178047839
1864467180
1964486017
20437324331
21871627041
223136899816
234278115101
2435355632943
2542359479638

[0,0,3,21,39,288,309,1659,3102,14148,17157,136227,
 130995,790128,1791489,5427597,8047839,64467180,
 64486017,437324331,871627041,3136899816,
 4278115101,35355632943,42359479638]