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A264875 as a simple table

na(n)
11
27
365
4572
53613
619372
7103585
8629654
93930725
1023940621
11142473267
12842856777
135016418697
1430065544899
15180338347093
161079186020543
176447895527277
1838523254178658
19230312221421636
201377482024204996

[1,7,65,572,3613,19372,103585,629654,3930725,
 23940621,142473267,842856777,5016418697,
 30065544899,180338347093,1079186020543,
 6447895527277,38523254178658,230312221421636,
 1377482024204996]