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A228260 as a simple table

na(n)
19
217
331
425
5143
663
733
8319
9621
10127
1141
12565
132511
142059
15255
1649
17881
186419
1913933
206305
21511
2257
231267
2412947
2553315
2658911
2719171
281023
2965
301723
3122727
32141989
33315601
34242461
3558025
362047
3773
382249
3936471
40310425
411161855
421688101
43989527

[9,17,31,25,143,63,33,319,621,127,41,565,2511,
 2059,255,49,881,6419,13933,6305,511,57,1267,12947,
 53315,58911,19171,1023,65,1723,22727,141989,
 315601,242461,58025,2047,73,2249,36471,310425,
 1161855,1688101,989527]