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A055275 as a simple table

na(n)
01
18
272
3648
45832
552488
6472392
74251528
838263752
9344373768
103099363912
1127894275208
12251048476872
132259436291848
1420334926626632
15183014339639688
161647129056757192
1714824161510814728
18133417453597332552
191200757082375992968
2010806813741383936712
2197261323672455430408
22875351913052098873672

[1,8,72,648,5832,52488,472392,4251528,38263752,
 344373768,3099363912,27894275208,251048476872,
 2259436291848,20334926626632,183014339639688,
 1647129056757192,14824161510814728,
 133417453597332552,1200757082375992968,
 10806813741383936712,97261323672455430408,
 875351913052098873672]