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A148387 as a simple table

na(n)
01
11
22
35
416
551
6169
7580
82097
97714
1028843
11110016
12426442
131670664
146607389
1526445339
16106744587
17433688136
181773688338
197306501045
2030264788185
21125931363266
22526553987611
232212172286388
249330058593341
2539485849417577
26167720037975233
27714836827043956
283055565449129670

[1,1,2,5,16,51,169,580,2097,7714,28843,110016,
 426442,1670664,6607389,26445339,106744587,
 433688136,1773688338,7306501045,30264788185,
 125931363266,526553987611,2212172286388,
 9330058593341,39485849417577,167720037975233,
 714836827043956,3055565449129670]