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A235770 as a simple table

na(n)
1660
25643
347501
4377890
52931878
621858973
7157282139
81084189363
97146773223
1045042182253
11271113821758
121563455298942
138638261431109
1445901448960399
15234728708263457
161159091427872949
175532056848492928
1825589861774420059

[660,5643,47501,377890,2931878,21858973,157282139,
 1084189363,7146773223,45042182253,271113821758,
 1563455298942,8638261431109,45901448960399,
 234728708263457,1159091427872949,5532056848492928,
 25589861774420059]