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A253680 as a simple table

n a(n)
1 204
2 2940
3 16296
4 57960
5 159060
6 368004
7 754320
8 1412496
9 2465820
10 4070220
11 6418104
12 9742200
13 14319396
14 20474580
15 28584480
16 39081504
17 52457580
18 69267996
19 90135240
20 115752840
21 146889204
22 184391460
23 229189296
24 282298800
25 344826300
26 417972204
27 503034840

[204,2940,16296,57960,159060,368004,754320,
 1412496,2465820,4070220,6418104,9742200,14319396,
 20474580,28584480,39081504,52457580,69267996,
 90135240,115752840,146889204,184391460,229189296,
 282298800,344826300,417972204,503034840]

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)