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A105940 as a simple table

na(n)
056
1756
25292
325872
499792
5324324
6924924
72378376
85621616
912388376
1025729704
1150791104
1295938752
13174350232
14306211752
15521694096
16864913896
171399125420
182213431220
193431347920
205221616400
217811703900
2211504509380
2316698853080
2423914406880
2533821804016

[56,756,5292,25872,99792,324324,924924,2378376,
 5621616,12388376,25729704,50791104,95938752,
 174350232,306211752,521694096,864913896,
 1399125420,2213431220,3431347920,5221616400,
 7811703900,11504509380,16698853080,23914406880,
 33821804016]