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A148315 as a simple table

na(n)
01
11
22
35
414
538
6124
7376
81294
94282
1015297
1153096
12196380
13703207
142666168
159803953
1637810371
17142047071
18555546878
192121629955
208397566784
2132502960555
22129911998351
23508624323397
242049487856803
258102493104535
2632878695403814
27131065339081490
28535106099908126
292148557956847231

[1,1,2,5,14,38,124,376,1294,4282,15297,53096,
 196380,703207,2666168,9803953,37810371,142047071,
 555546878,2121629955,8397566784,32502960555,
 129911998351,508624323397,2049487856803,
 8102493104535,32878695403814,131065339081490,
 535106099908126,2148557956847231]