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A245160 as a simple table

na(n)
11
21
32
44
59
623
765
8199
9654
102296
118569
1233825
13140580
14612890
152794159
1613280627
1765597882
18335521900
191770176005
209593485125
2153183385680
22300371056446
231721926382427
249987133305239
2558446578859494
26344361988828048

[1,1,2,4,9,23,65,199,654,2296,8569,33825,140580,
 612890,2794159,13280627,65597882,335521900,
 1770176005,9593485125,53183385680,300371056446,
 1721926382427,9987133305239,58446578859494,
 344361988828048]