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A281468 as a simple table

na(n)
164
2361
3145
4260
5472
6924
71887
83681
97126
1014363
1129371
1259830
13122230
14250638
15513616
161053242
172163243
184442634
199122210
2018740008
2138502723
2279097291
23162508103
24333905314
25686048845
261409580474
272896272475
285950951790

[64,361,145,260,472,924,1887,3681,7126,14363,
 29371,59830,122230,250638,513616,1053242,2163243,
 4442634,9122210,18740008,38502723,79097291,
 162508103,333905314,686048845,1409580474,
 2896272475,5950951790]