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A258537 as a simple table

n a(n)
1 220
2 2916
3 20736
4 161604
5 726880
6 4359744
7 15444224
8 78039556
9 238216520
10 1091641600
11 3064541952
12 13194657424
13 35313510072
14 145324113796
15 378585527360
16 1503409490496
17 3856470856448
18 14877667836964
19 37794053212800

[220,2916,20736,161604,726880,4359744,15444224,
 78039556,238216520,1091641600,3064541952,
 13194657424,35313510072,145324113796,378585527360,
 1503409490496,3856470856448,14877667836964,
 37794053212800]

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Last modified January 24 13:48 EST 2022. Contains 350538 sequences. (Running on oeis4.)