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A188378 as a simple table

na(n)
02
15
212
330
477
5200
6522
71365
83572
99350
1024477
1164080
12167762
13439205
141149852
153010350
167881197
1720633240
1854018522
19141422325
20370248452
21969323030
222537720637
236643838880
2417393796002
2545537549125
26119218851372
27312119004990
28817138163597
292139295485800

[2,5,12,30,77,200,522,1365,3572,9350,24477,64080,
 167762,439205,1149852,3010350,7881197,20633240,
 54018522,141422325,370248452,969323030,2537720637,
 6643838880,17393796002,45537549125,119218851372,
 312119004990,817138163597,2139295485800]