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A291484 as a simple table

na(n)
00
11
22
35
412
549
6190
71301
87224
969441
10495898
116095429
1253005700
13792143793
148110146070
15142633278997
161679413757168
1733964965659649
18451969255722162
1910331348137881349
20153288815339260796
213907452790559751857
2263949589015139119598
231798373345567005989781
2432179694275204166066728

[0,1,2,5,12,49,190,1301,7224,69441,495898,6095429,
 53005700,792143793,8110146070,142633278997,
 1679413757168,33964965659649,451969255722162,
 10331348137881349,153288815339260796,
 3907452790559751857,63949589015139119598,
 1798373345567005989781,32179694275204166066728]