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A249659 as a simple table

na(n)
12
253
3164
4485
51408
63221
76678
812377
920572
1033877
1151568
1274947
13105310
14143727
15195754
16259799
17336688
18428339
19536286
20671719
21828944
221009781
231216838
241452459
251732578
262047055
272399248
282791887
293227102
303727571
314279592
324886643

[2,53,164,485,1408,3221,6678,12377,20572,33877,
 51568,74947,105310,143727,195754,259799,336688,
 428339,536286,671719,828944,1009781,1216838,
 1452459,1732578,2047055,2399248,2791887,3227102,
 3727571,4279592,4886643]