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A248989 as a simple table

na(n)
12
253
3204
4585
51654
64137
77964
814661
923778
1039441
1160264
1290193
13126626
14176141
15239692
16322385
17419046
18539841
19675924
20853485
211053130
221293121
231559752
241873217
252232130
262653637
273111812
283639577
294210230
304884793
315609564
326430901

[2,53,204,585,1654,4137,7964,14661,23778,39441,
 60264,90193,126626,176141,239692,322385,419046,
 539841,675924,853485,1053130,1293121,1559752,
 1873217,2232130,2653637,3111812,3639577,4210230,
 4884793,5609564,6430901]