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A260287 as a simple table

na(n)
148
2104
3274
4560
5966
62300
74762
88252
917470
1038160
1171698
12142360
13304646
14599716
151172578
162447716
174949782
189718248
1919837162
2040474736
2180338222
22161965772
23330213194
24661573644
251327566094
262695382016
275430701122

[48,104,274,560,966,2300,4762,8252,17470,38160,
 71698,142360,304646,599716,1172578,2447716,
 4949782,9718248,19837162,40474736,80338222,
 161965772,330213194,661573644,1327566094,
 2695382016,5430701122]