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A080877 as a simple table

na(n)
01
11
22
33
48
514
640
772
8208
9376
101088
111968
125696
1310304
1429824
1553952
16156160
17282496
18817664
191479168
204281344
217745024
2222417408
2340553472
24117379072
25212340736
26614604800
271111830528
283218112512
295821620224
3016850255872

[1,1,2,3,8,14,40,72,208,376,1088,1968,5696,10304,
 29824,53952,156160,282496,817664,1479168,4281344,
 7745024,22417408,40553472,117379072,212340736,
 614604800,1111830528,3218112512,5821620224,
 16850255872]