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A136227 as a simple table

na(n)
01
14
226
3232
42657
537405
6627435
712248365
8273211787
96862775083
10191840407156
115909873159107
12199002812894375
137273866200397039
14286882936292798852
1512145886485652450131
16549504341899436759416

[1,4,26,232,2657,37405,627435,12248365,273211787,
 6862775083,191840407156,5909873159107,
 199002812894375,7273866200397039,
 286882936292798852,12145886485652450131,
 549504341899436759416]