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A117758 as a simple table

na(n)
01
12
25
311
435
5103
6323
71052
83469
911726
1040234
11139955
12492505
131750900
146275491
1522662455
1682364564
17301058002
181106006504
194081585024
2015124027686
2156247438994
22209889216294
23785601467368
242948682167318
2511096081791175
2641854378016484
27158221313955249

[1,2,5,11,35,103,323,1052,3469,11726,40234,139955,
 492505,1750900,6275491,22662455,82364564,
 301058002,1106006504,4081585024,15124027686,
 56247438994,209889216294,785601467368,
 2948682167318,11096081791175,41854378016484,
 158221313955249]