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A122074 as a simple table

na(n)
01
16
240
3268
41796
512036
680660
7540548
83622516
924276516
10162690580
111090281028
127306586036
1348965540196
14328145609300
152199088184708
1614737326074356
1798763106151076
18661867090908820
194435543424059588
2029725069786599476
21199204401658077156

[1,6,40,268,1796,12036,80660,540548,3622516,
 24276516,162690580,1090281028,7306586036,
 48965540196,328145609300,2199088184708,
 14737326074356,98763106151076,661867090908820,
 4435543424059588,29725069786599476,
 199204401658077156]