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A123865 as a simple table

n a(n)
1 0
2 15
3 80
4 255
5 624
6 1295
7 2400
8 4095
9 6560
10 9999
11 14640
12 20735
13 28560
14 38415
15 50624
16 65535
17 83520
18 104975
19 130320
20 159999
21 194480
22 234255
23 279840
24 331775
25 390624
26 456975
27 531440
28 614655
29 707280
30 809999
31 923520
32 1048575
33 1185920
34 1336335

[0,15,80,255,624,1295,2400,4095,6560,9999,14640,
 20735,28560,38415,50624,65535,83520,104975,130320,
 159999,194480,234255,279840,331775,390624,456975,
 531440,614655,707280,809999,923520,1048575,
 1185920,1336335]

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Last modified March 2 06:48 EST 2021. Contains 341744 sequences. (Running on oeis4.)