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A047038 as a simple table

na(n)
01
14
215
356
4209
5784
62958
711220
842753
9163548
10627770
112416804
129328384
1336087780
14139890764
15543246696
162113015731
178230687548
1832102370550
19125358442460
20490049744789
211917595810240
227510507532319
2329440544167696

[1,4,15,56,209,784,2958,11220,42753,163548,627770,
 2416804,9328384,36087780,139890764,543246696,
 2113015731,8230687548,32102370550,125358442460,
 490049744789,1917595810240,7510507532319,
 29440544167696]