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A089074 as a simple table

na(n)
00
11
23
37
414
528
655
7107
8207
9400
10772
111489
122871
135535
1410670
1520568
1639647
1776423
18147311
19283952
20547336
211055025
222033627
233919943
247555934
2514564532
2628074039
2754114451
28104308959
29201061984
30387559436
31747044833
321439975215

[0,1,3,7,14,28,55,107,207,400,772,1489,2871,5535,
 10670,20568,39647,76423,147311,283952,547336,
 1055025,2033627,3919943,7555934,14564532,28074039,
 54114451,104308959,201061984,387559436,747044833,
 1439975215]