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A115275 as a simple table

na(n)
01
11
22
35
414
551
6187
7820
83670
918191
1097917
11554500
123334465
1320871592
14138440031
15972083845
166985171390
1752194795327
18412903730293
193313067916192
2028017395030419
21241504438776956
222189375704925081
2319771679215526507
24187677937412341677

[1,1,2,5,14,51,187,820,3670,18191,97917,554500,
 3334465,20871592,138440031,972083845,6985171390,
 52194795327,412903730293,3313067916192,
 28017395030419,241504438776956,2189375704925081,
 19771679215526507,187677937412341677]