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A001523 as a simple table

na(n)
01
11
22
34
48
515
627
747
879
9130
10209
11330
12512
13784
141183
151765
162604
173804
185504
197898
2011240
2115880
2222277
2331048
2443003
2559220
2681098
27110484
28149769
29202070
30271404
31362974
32483439
33641368
34847681
351116325
361464999
371916184
382498258
393247088
404207764

[1,1,2,4,8,15,27,47,79,130,209,330,512,784,1183,
 1765,2604,3804,5504,7898,11240,15880,22277,31048,
 43003,59220,81098,110484,149769,202070,271404,
 362974,483439,641368,847681,1116325,1464999,
 1916184,2498258,3247088,4207764]