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A374263 as a simple table

na(n)
21
32
44
56
68
711
815
918
1022
1127
1231
1337
1443
1547
1655
1763
1869
1978
2086
2192
22102
23113
24121
25131
26143
27152
28164
29178
30186
31201
32217
33227
34243
35255
36267
37285
38303
39315
40331
41351
42363
43384
44404
45416
46438
47461
48477
49498

[1,2,4,6,8,11,15,18,22,27,31,37,43,47,55,63,69,78,
 86,92,102,113,121,131,143,152,164,178,186,201,217,
 227,243,255,267,285,303,315,331,351,363,384,404,
 416,438,461,477,498]