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A025196 as a simple table

na(n)
20
30
42
54
68
714
822
932
1045
1161
1280
13103
14130
15162
16198
17239
18286
19338
20397
21462
22533
23612
24698
25791
26893
271003
281122
291250
301387
311534
321691
331858
342036
352225
362426
372638
382862
393098
403348
413610
423885
434175
444478
454796
465128
475476
485838
496217
506611
517022
527450
537894

[0,0,2,4,8,14,22,32,45,61,80,103,130,162,198,239,
 286,338,397,462,533,612,698,791,893,1003,1122,
 1250,1387,1534,1691,1858,2036,2225,2426,2638,2862,
 3098,3348,3610,3885,4175,4478,4796,5128,5476,5838,
 6217,6611,7022,7450,7894]