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A055730 as a simple table

na(n)
00
13
29
330
4114
5445
61821
77671
833118
9145713
10650133
112934858
1213375865
1361444585
14284140656
151321453490
166175961983
1728988040005
18136575061279
19645620925545
203061129684411
2114552990145243
2269354801708586
23331251325552977
241585299642009257
257600886353341754
2636504944044424979
27175596829407110803
28845879609035799508
294080206964520522386
3019705939422430380037
3195283357078617397618
32461221032128956299315

[0,3,9,30,114,445,1821,7671,33118,145713,650133,
 2934858,13375865,61444585,284140656,1321453490,
 6175961983,28988040005,136575061279,645620925545,
 3061129684411,14552990145243,69354801708586,
 331251325552977,1585299642009257,7600886353341754,
 36504944044424979,175596829407110803,
 845879609035799508,4080206964520522386,
 19705939422430380037,95283357078617397618,
 461221032128956299315]