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A049678 as a simple table

na(n)
01
148
22255
3105937
44976784
5233802911
610983760033
7516002918640
824241153416047
91138818207635569
1053500214605455696
112513371268248782143
12118074949393087305025
135547009250206854554032
14260591359810329076734479
1512242246901835259751966481

[1,48,2255,105937,4976784,233802911,10983760033,
 516002918640,24241153416047,1138818207635569,
 53500214605455696,2513371268248782143,
 118074949393087305025,5547009250206854554032,
 260591359810329076734479,
 12242246901835259751966481]