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A269462 as a simple table

na(n)
14
216
360
4228
5852
63180
711796
843644
9160980
10592572
112177268
127988700
1329277204
14107195196
15392179380
161433907228
175240022612
1819140884220
1969894090996
20255150047964
21931214323860
223397977981372
2312397189043508
2445224087388060

[4,16,60,228,852,3180,11796,43644,160980,592572,
 2177268,7988700,29277204,107195196,392179380,
 1433907228,5240022612,19140884220,69894090996,
 255150047964,931214323860,3397977981372,
 12397189043508,45224087388060]