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A239802 as a simple table

na(n)
136
242
3186
4222
5270
6390
7396
8440
9656
102220
114140
125622
139400
1420214
1594816
16282540
1717578122
1885046840
19125948800
20145805120
21434435360
2211152607958
2311160256626

[36,42,186,222,270,390,396,440,656,2220,4140,5622,
 9400,20214,94816,282540,17578122,85046840,
 125948800,145805120,434435360,11152607958,
 11160256626]