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A226744 as a simple table

na(n)
18
228
3169
41218
59512
678030
7661459
85740304
950701542
10454011971
114110416301
1237550193650
13345618860221
143201414635781
1529816233849001
16279007258230820
172621647966812031
1824723998785919976
19233922961602470391
202219671974013732243

[8,28,169,1218,9512,78030,661459,5740304,50701542,
 454011971,4110416301,37550193650,345618860221,
 3201414635781,29816233849001,279007258230820,
 2621647966812031,24723998785919976,
 233922961602470391,2219671974013732243]