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A317234 as a simple table

na(n)
18
224
360
4168
5674
62432
78255
829245
9105103
10371011
111309368
124655316
1316519210
1458492609
15207432479
16735833616
172608622433
189248841123
1932798084620
20116297139395
21412355808249
221462162440452
235184649702920
2418383824165115

[8,24,60,168,674,2432,8255,29245,105103,371011,
 1309368,4655316,16519210,58492609,207432479,
 735833616,2608622433,9248841123,32798084620,
 116297139395,412355808249,1462162440452,
 5184649702920,18383824165115]