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A247298 as a simple table

na(n)
01
11
22
34
48
517
636
780
8180
9410
10946
112203
125173
1312233
1429108
1569643
16167437
17404311
18980125
192384441
205819576
2114245384
2234964611
2386032272
24212172668
25524371704
261298509438
273221425567
288005623916
2919926840746
3049674610998
31124006308008

[1,1,2,4,8,17,36,80,180,410,946,2203,5173,12233,
 29108,69643,167437,404311,980125,2384441,5819576,
 14245384,34964611,86032272,212172668,524371704,
 1298509438,3221425567,8005623916,19926840746,
 49674610998,124006308008]