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A026523 as a simple table

na(n)
31
42
58
616
752
8104
9319
10635
111910
123786
1311304
1422344
1566514
16131264
17390266
18769578
192286996
204508580
2113397075
2226412001
2378489235
24154773696
25460030947
26907432695
272697786052
285323519838
2915830906756
3031251588060

[1,2,8,16,52,104,319,635,1910,3786,11304,22344,
 66514,131264,390266,769578,2286996,4508580,
 13397075,26412001,78489235,154773696,460030947,
 907432695,2697786052,5323519838,15830906756,
 31251588060]