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A249055 as a simple table

na(n)
10
22
312
430
556
690
7143
8210
9272
10342
11420
12506
13600
14702
15812
16992
171122
181260
191406
201560
211722
221892
232070
242256
252450
262652
272862
283135
293422
303660
313906
324160
334422
344692
354970
365256
375550
385852
396162
406480
416806
427140
437482
447832
458372
468742
479120
489506
499900

[0,2,12,30,56,90,143,210,272,342,420,506,600,702,
 812,992,1122,1260,1406,1560,1722,1892,2070,2256,
 2450,2652,2862,3135,3422,3660,3906,4160,4422,4692,
 4970,5256,5550,5852,6162,6480,6806,7140,7482,7832,
 8372,8742,9120,9506,9900]