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A026397 as a simple table

na(n)
01
12
23
36
410
517
631
753
892
9163
10282
11492
12863
131501
142621
154582
167987
1713946
1824354
1942489
2074179
21129497
22226000
23394523
24688670
251202020
262098239
273662553
286392969
2911159290
3019478867
3134000750
3259349706
33103596641

[1,2,3,6,10,17,31,53,92,163,282,492,863,1501,2621,
 4582,7987,13946,24354,42489,74179,129497,226000,
 394523,688670,1202020,2098239,3662553,6392969,
 11159290,19478867,34000750,59349706,103596641]