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A097192 as a simple table

na(n)
01
124
2612
315912
4417690
511027016
6292215924
77764594552
8206732329947
95512862131920
10147193418922264
113934078651195056
12105236603919467748
132817102935690367408
1475458114348849127000
152022277464549156603600

[1,24,612,15912,417690,11027016,292215924,
 7764594552,206732329947,5512862131920,
 147193418922264,3934078651195056,
 105236603919467748,2817102935690367408,
 75458114348849127000,2022277464549156603600]