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A157493 as a simple table

na(n)
14
221
376
4218
5568
61295
72688
85108
99084
1015457
1125188
1239646
1360512
1489635
15129224
16182088
17251708
18341805
19456868
20601938
21782344
221004327
231274776
241601612
251994244
262462873
273018108
283671398
294434624
305320555
316345320

[4,21,76,218,568,1295,2688,5108,9084,15457,25188,
 39646,60512,89635,129224,182088,251708,341805,
 456868,601938,782344,1004327,1274776,1601612,
 1994244,2462873,3018108,3671398,4434624,5320555,
 6345320]