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A247787 as a simple table

na(n)
14
26
313
414
532
631
748
838
978
1080
1162
1274
13121
14108
15128
16192
17182
18133
19160
20192
21180
22158
23288
24240
25194
26272
27252
28288
29256
30403
31288
32390
33448
34278
35480
36352
37314
38434
39494
40576
41576
42381
43512
44576
45528
46398
47422
48540
49608
50458
51768
52702
53532
54672

[4,6,13,14,32,31,48,38,78,80,62,74,121,108,128,
 192,182,133,160,192,180,158,288,240,194,272,252,
 288,256,403,288,390,448,278,480,352,314,434,494,
 576,576,381,512,576,528,398,422,540,608,458,768,
 702,532,672]