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A049652 as a simple table

na(n)
00
11
25
322
494
5399
61691
77164
830348
9128557
10544577
112306866
129772042
1341395035
14175352183
15742803768
163146567256
1713329072793
1856462858429
19239180506510
201013184884470
214291920044391
2218180865062035
2377015380292532
24326242386232164
251381984925221189
265854182087116921

[0,1,5,22,94,399,1691,7164,30348,128557,544577,
 2306866,9772042,41395035,175352183,742803768,
 3146567256,13329072793,56462858429,239180506510,
 1013184884470,4291920044391,18180865062035,
 77015380292532,326242386232164,1381984925221189,
 5854182087116921]