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A258540 as a simple table

n a(n)
1 2520
2 8836
3 20736
4 57600
5 142544
6 381924
7 956736
8 2496400
9 6344576
10 16467364
11 42350672
12 110082064
13 285367424
14 743652900
15 1936887872
16 5057485456
17 13206499776
18 34526842596
19 90279314432
20 236188224064
21 617983034784

[2520,8836,20736,57600,142544,381924,956736,
 2496400,6344576,16467364,42350672,110082064,
 285367424,743652900,1936887872,5057485456,
 13206499776,34526842596,90279314432,236188224064,
 617983034784]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)