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A290987 as a simple table

na(n)
01
12
24
38
416
532
663
7122
8233
9441
10830
111557
122915
135451
1410186
1519026
1635529
1766337
18123849
19231211
20431631
21805768
221504193
232807986
245241856
259785309
2618266848
2734099850
2863656272
29118831031
30221829087
31414101780
32773028830
331443059634
342693846606

[1,2,4,8,16,32,63,122,233,441,830,1557,2915,5451,
 10186,19026,35529,66337,123849,231211,431631,
 805768,1504193,2807986,5241856,9785309,18266848,
 34099850,63656272,118831031,221829087,414101780,
 773028830,1443059634,2693846606]