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A042809 as a simple table

na(n)
01
11
22
35
47
519
626
745
82726
92771
105497
1113765
1219262
1352289
1471551
15123840
167501951
177625791
1815127742
1937881275
2053009017
21143899309
22196908326
23340807635
2420645366426
2520986174061
2641631540487
27104249255035
28145880795522
29396010846079

[1,1,2,5,7,19,26,45,2726,2771,5497,13765,19262,
 52289,71551,123840,7501951,7625791,15127742,
 37881275,53009017,143899309,196908326,340807635,
 20645366426,20986174061,41631540487,104249255035,
 145880795522,396010846079]