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A249852 as a simple table

na(n)
00
12
27
314
423
535
650
767
886
9108
10133
11160
12189
13221
14256
15293
16332
17374
18419
19466
20515
21567
22622
23679
24738
25800
26865
27932
281001
291073
301148
311225
321304
331386
341471
351558
361647
371739
381834
391931
402030
412132
422237
432344
442453
452565
462680
472797
482916
493038
503163
513290
523419

[0,2,7,14,23,35,50,67,86,108,133,160,189,221,256,
 293,332,374,419,466,515,567,622,679,738,800,865,
 932,1001,1073,1148,1225,1304,1386,1471,1558,1647,
 1739,1834,1931,2030,2132,2237,2344,2453,2565,2680,
 2797,2916,3038,3163,3290,3419]