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A026731 as a simple table

na(n)
01
11
22
34
47
516
627
765
8108
9267
10440
111105
121812
134597
147514
1519196
1631307
1780380
18130883
19337284
20548547
211417582
222303413
235965622
249686617
2525130844
2640783083
27105954110
28171868037
29447015744
30724837891
311886996681

[1,1,2,4,7,16,27,65,108,267,440,1105,1812,4597,
 7514,19196,31307,80380,130883,337284,548547,
 1417582,2303413,5965622,9686617,25130844,40783083,
 105954110,171868037,447015744,724837891,
 1886996681]