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A237664 as a simple table

na(n)
00
11
27
341
4211
51009
64621
720593
890091
9388961
101662805
117054321
1229745717
13124807201
14521515801
152171645281
169016205851
1737337699521
18154277300101
19636214748401
202619084047581
2110765157488801
2244186078238121
23181135476007201
24741694884711301

[0,1,7,41,211,1009,4621,20593,90091,388961,
 1662805,7054321,29745717,124807201,521515801,
 2171645281,9016205851,37337699521,154277300101,
 636214748401,2619084047581,10765157488801,
 44186078238121,181135476007201,741694884711301]