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A026007 as a simple table

na(n)
01
11
22
35
48
516
628
749
883
9142
10235
11385
12627
131004
141599
152521
163940
176111
189421
1914409
2021916
2133134
2249808
2374484
24110837
25164132
26241960
27355169
28519158
29755894
301096411
311584519
322281926
333275276
344685731
356682699
369501979
3713471239
3819044780
3926850921
4037756561
4152955699

[1,1,2,5,8,16,28,49,83,142,235,385,627,1004,1599,
 2521,3940,6111,9421,14409,21916,33134,49808,74484,
 110837,164132,241960,355169,519158,755894,1096411,
 1584519,2281926,3275276,4685731,6682699,9501979,
 13471239,19044780,26850921,37756561,52955699]