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A107419 as a simple table

n a(n)
0 1
1 40
2 540
3 4200
4 23100
5 99792
6 360360
7 1132560
8 3185325
9 8179600
10 19467448
11 43439760
12 91706160
13 184497600
14 355816800
15 661028544
16 1187785665
17 2071432440
18 3516320500
19 5824819000
20 9436206780
21 14978106000
22 23333661000
23 35728290000
24 53840548125
25 79942445856

[1,40,540,4200,23100,99792,360360,1132560,3185325,
 8179600,19467448,43439760,91706160,184497600,
 355816800,661028544,1187785665,2071432440,
 3516320500,5824819000,9436206780,14978106000,
 23333661000,35728290000,53840548125,79942445856]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)