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A026667 as a simple table

na(n)
01
11
23
35
414
521
655
798
8255
9421
101047
111939
124851
138393
1420265
1538423
1693728
17166999
18395317
19761724
201824934
213319575
227745123
2315103234
2435691596
2565946113
26152151529
27299476048
28700050056
291309537115
302994340063

[1,1,3,5,14,21,55,98,255,421,1047,1939,4851,8393,
 20265,38423,93728,166999,395317,761724,1824934,
 3319575,7745123,15103234,35691596,65946113,
 152151529,299476048,700050056,1309537115,
 2994340063]