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A260927 as a simple table

na(n)
136
248
348
4104
568
6104
7186
8146
9146
10186
11297
12279
13401
14279
15297
16491
17468
18896
19896
20468
21491
22883
23831
241800
252208
261800
27831
28883
291489
301528
313358
324522
334522
343358
351528
361489
372534
382750
397680
4010617
4111608
4210617
437680
442750
452534
464289
474874

[36,48,48,104,68,104,186,146,146,186,297,279,401,
 279,297,491,468,896,896,468,491,883,831,1800,2208,
 1800,831,883,1489,1528,3358,4522,4522,3358,1528,
 1489,2534,2750,7680,10617,11608,10617,7680,2750,
 2534,4289,4874]