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A212681 as a simple table

n a(n)
0 0
1 0
2 4
3 24
4 88
5 230
6 504
7 966
8 1696
9 2772
10 4300
11 6380
12 9144
13 12714
14 17248
15 22890
16 29824
17 38216
18 48276
19 60192
20 74200
21 90510
22 109384
23 131054
24 155808
25 183900
26 215644
27 251316
28 291256
29 335762
30 385200
31 439890
32 500224
33 566544
34 639268

[0,0,4,24,88,230,504,966,1696,2772,4300,6380,9144,
 12714,17248,22890,29824,38216,48276,60192,74200,
 90510,109384,131054,155808,183900,215644,251316,
 291256,335762,385200,439890,500224,566544,639268]

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Last modified October 6 19:00 EDT 2022. Contains 357270 sequences. (Running on oeis4.)