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A056001 as a simple table

na(n)
01
116
2108
3480
41650
54752
612012
727456
857915
9114400
10213928
11381888
12655044
131085280
141744200
152728704
164167669
176229872
189133300
1913156000
2018648630
2126048880
2235897940
2348859200
2465739375
2587512256
26115345296
27150629248
28195011080
29250430400
30319159632

[1,16,108,480,1650,4752,12012,27456,57915,114400,
 213928,381888,655044,1085280,1744200,2728704,
 4167669,6229872,9133300,13156000,18648630,
 26048880,35897940,48859200,65739375,87512256,
 115345296,150629248,195011080,250430400,319159632]