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A097984 as a simple table

na(n)
15
212
321
432
545
660
776
894
9114
10135
11159
12184
13210
14239
15269
16301
17334
18369
19406
20444
21485
22526
23570
24615
25662
26710
27760
28812
29866
30921
31977
321036
331096
341158
351221
361286
371353
381421
391491
401562
411636
421710
431787
441865
451945

[5,12,21,32,45,60,76,94,114,135,159,184,210,239,
 269,301,334,369,406,444,485,526,570,615,662,710,
 760,812,866,921,977,1036,1096,1158,1221,1286,1353,
 1421,1491,1562,1636,1710,1787,1865,1945]