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A219557 as a simple table

na(n)
01
13
29
333
496
5273
6749
71953
84916
912023
1028642
1166575
12151544
13338294
14741880
151601048
163403936
177137386
1814774713
1930219025
2061115184
21122300146
22242312186
23475589389
24925158391
251784529840
263414565313
276483608230
2812221370425
2922876263089
3042534593868

[1,3,9,33,96,273,749,1953,4916,12023,28642,66575,
 151544,338294,741880,1601048,3403936,7137386,
 14774713,30219025,61115184,122300146,242312186,
 475589389,925158391,1784529840,3414565313,
 6483608230,12221370425,22876263089,42534593868]