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A054563 as a simple table

n a(n)
0 0
1 0
2 6
3 45
4 190
5 595
6 1540
7 3486
8 7140
9 13530
10 24090
11 40755
12 66066
13 103285
14 156520
15 230860
16 332520
17 468996
18 649230
19 883785
20 1185030
21 1567335
22 2047276
23 2643850
24 3378700
25 4276350
26 5364450
27 6674031
28 8239770
29 10100265
30 12298320
31 14881240

[0,0,6,45,190,595,1540,3486,7140,13530,24090,
 40755,66066,103285,156520,230860,332520,468996,
 649230,883785,1185030,1567335,2047276,2643850,
 3378700,4276350,5364450,6674031,8239770,10100265,
 12298320,14881240]

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Last modified September 21 19:57 EDT 2020. Contains 337273 sequences. (Running on oeis4.)