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A134955 as a simple table

na(n)
01
11
22
34
49
520
650
7128
8351
91009
103035
119464
1230479
13100712
14340072
151169296
164082243
1714438577
1851643698
19186530851
20679530937
212494433346
229219028889
2334280914106
24128179985474
25481694091291
261818516190252
276894350122452

[1,1,2,4,9,20,50,128,351,1009,3035,9464,30479,
 100712,340072,1169296,4082243,14438577,51643698,
 186530851,679530937,2494433346,9219028889,
 34280914106,128179985474,481694091291,
 1818516190252,6894350122452]