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A297861 as a simple table

na(n)
10
22
34
413
562
6222
7820
83159
911882
1044870
11169628
12640493
132419796
149141186
1534529922
16130440579
17492746204
181861372064
197031443952
2026561657355
21100338117488
22379032792052
231431817164232
245408768126291
2520431919210138

[0,2,4,13,62,222,820,3159,11882,44870,169628,
 640493,2419796,9141186,34529922,130440579,
 492746204,1861372064,7031443952,26561657355,
 100338117488,379032792052,1431817164232,
 5408768126291,20431919210138]