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A181475 as a simple table

na(n)
01
17
291
3397
41141
52611
65167
79241
815337
924031
1035971
1151877
1272541
1398827
14131671
15172081
16221137
17279991
18349867
19432061
20527941
21638947
22766591
23912457
241078201
251265551
261476307
271712341
281975597
292268091
302591911
312949217
323342241
333773287
344244731

[1,7,91,397,1141,2611,5167,9241,15337,24031,35971,
 51877,72541,98827,131671,172081,221137,279991,
 349867,432061,527941,638947,766591,912457,1078201,
 1265551,1476307,1712341,1975597,2268091,2591911,
 2949217,3342241,3773287,4244731]