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A277224 as a simple table

na(n)
11
23
38
415
532
663
7130
8257
9520
101029
112060
124113
138240
1416477
1532958
1665915
17131836
18263633
19527280
201054553
212109130
224218257
238436528
2416873045
2533746094
2667492171
27134984390
28269968777
29539937558
301079875091
312159750220
324319500381
338639000780
3417278001533
3534556003072
3669112006095

[1,3,8,15,32,63,130,257,520,1029,2060,4113,8240,
 16477,32958,65915,131836,263633,527280,1054553,
 2109130,4218257,8436528,16873045,33746094,
 67492171,134984390,269968777,539937558,1079875091,
 2159750220,4319500381,8639000780,17278001533,
 34556003072,69112006095]